diff --git a/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs b/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
index c52902bfed..6f3eb540f2 100644
--- a/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
@@ -188,11 +188,11 @@ public class EfCoreIdentityUserRepository : EfCoreRepository<IIdentityDbContext,
             )
             .WhereIf(roleId.HasValue, identityUser => identityUser.Roles.Any(x => x.RoleId == roleId.Value))
             .WhereIf(organizationUnitId.HasValue, identityUser => identityUser.OrganizationUnits.Any(x => x.OrganizationUnitId == organizationUnitId.Value))
-            .WhereIf(!string.IsNullOrWhiteSpace(userName), x => x.UserName == userName)
-            .WhereIf(!string.IsNullOrWhiteSpace(phoneNumber), x => x.PhoneNumber == phoneNumber)
-            .WhereIf(!string.IsNullOrWhiteSpace(emailAddress), x => x.Email == emailAddress)
-            .WhereIf(!string.IsNullOrWhiteSpace(name), x => x.Name == name)
-            .WhereIf(!string.IsNullOrWhiteSpace(surname), x => x.Surname == surname)
+            .WhereIf(!string.IsNullOrWhiteSpace(userName), x => x.UserName.Contains(userName))
+            .WhereIf(!string.IsNullOrWhiteSpace(phoneNumber), x => x.PhoneNumber.Contains(phoneNumber))
+            .WhereIf(!string.IsNullOrWhiteSpace(emailAddress), x => x.Email.Contains(emailAddress))
+            .WhereIf(!string.IsNullOrWhiteSpace(name), x => x.Name.Contains(name))
+            .WhereIf(!string.IsNullOrWhiteSpace(surname), x => x.Surname.Contains(surname))
             .WhereIf(isLockedOut.HasValue, x => (x.LockoutEnabled && x.LockoutEnd.HasValue && x.LockoutEnd.Value.CompareTo(DateTime.UtcNow) > 0) == isLockedOut.Value)
             .WhereIf(notActive.HasValue, x => x.IsActive == !notActive.Value)
             .WhereIf(emailConfirmed.HasValue, x => x.EmailConfirmed == emailConfirmed.Value)
diff --git a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
index 51960edbba..255e492c05 100644
--- a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
@@ -168,11 +168,11 @@ public class MongoIdentityUserRepository : MongoDbRepository<IAbpIdentityMongoDb
             )
             .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(roleId.HasValue, identityUser => identityUser.Roles.Any(x => x.RoleId == roleId.Value))
             .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(organizationUnitId.HasValue, identityUser => identityUser.OrganizationUnits.Any(x => x.OrganizationUnitId == organizationUnitId.Value))
-            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(userName), x => x.UserName == userName)
-            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(phoneNumber), x => x.PhoneNumber == phoneNumber)
-            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(emailAddress), x => x.Email == emailAddress)
-            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(name), x => x.Name == name)
-            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(surname), x => x.Surname == surname)
+            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(userName), x => x.UserName.Contains(userName))
+            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(phoneNumber), x => x.PhoneNumber.Contains(phoneNumber))
+            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(emailAddress), x => x.Email.Contains(emailAddress))
+            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(name), x => x.Name.Contains(name))
+            .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(!string.IsNullOrWhiteSpace(surname), x => x.Surname.Contains(surname))
             .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(isLockedOut.HasValue && isLockedOut.Value, x => x.LockoutEnabled && x.LockoutEnd != null && x.LockoutEnd > DateTimeOffset.UtcNow)
             .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(isLockedOut.HasValue && !isLockedOut.Value, x =>  !(x.LockoutEnabled && x.LockoutEnd != null && x.LockoutEnd > DateTimeOffset.UtcNow))
             .WhereIf<IdentityUser, IMongoQueryable<IdentityUser>>(notActive.HasValue, x => x.IsActive == !notActive.Value)