Google contacts sync issue

I have Lenovo Vibe K5. I have several contacts in my Google account, and tried to sync them to my phone. But, a weird issue happened. Contacts with same name (with possible permutations) were not syncing. Look at the examples to understand better.

Example 1:

In google, if I have these contacts:

Ram Kumar - xxxxxxxxxx

Kumar Ram - yyyyyyyyyy

then, only one of the two gets synced to my phone. I got only Kumar Ram synced in phone.

Even though, after syncing, if I delete Kumar Ram in Google contacts, and re-sync in phone, only Kumar Ram gets deleted and Ram Kumar doesn't appear though. It appears only after deleting the account from phone and re-add and sync again.

Example 2:

In google, if I have these contacts:

Obama America - xxxxxxxxxx

America Obama - yyyyyyyyyy

Russia Putin - zzzzzzzzzz

Putin Russia - aaaaaaaaaa

then, only Obama America and Russia Putin gets synced.

Again, just deleting the Obama America in Google contacts, and re-sync in phone won't fetch America Obama to my phone. I need to delete my Google account from phone and re-add and sync again.

Note: All contact numbers are unique. Also, tried syncing in other android mobiles, it works perfect. The issue only happens in Lenovo Vibe K5.

How can I fix this?