Perhaps you should try some spelling variations:
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
van cam » van lam, van cau, van dam
xac ky » cac ky, bac ky
nang o » nang co, nang ho, nang ro
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((xac ky) OR (sac ky)) nang o hoi. hieu ((van cam) or (van nam)) xuc va tinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((xac ky) OR (sac ky)) nang o hoi. hieu ((van cam) OR (van nam)) xuc va tinh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((xac ky) OR (sac ky)) nang o hoi. hieu ((van cam) or (van nam)) xuc va tinh vi cua te*".