Perhaps you should try some spelling variations:
thien hoat » trien hoat, thien thuat, tien hoa
tinh nang » trinh nang, tin nang, tich nang
nang quan » ban quan, nang suat
van thien » van tien, van hien, van chien
san hieu » sang dieu, gian hieu, phan hieu
van hieu » cao hieu
quan van » luan van, quan va, quan luan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung tai ((san hieu) or (van hieu)) luat ) or ( tinh nang quan van thien hoat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung tai ((san hieu) OR (van hieu)) luat ) OR ( tinh nang quan van thien hoat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung tai ((san hieu) or (van hieu)) luat ) or ( tinh nang quan van thien hoat ))*.