Perhaps you should try some spelling variations:
thuat anh » thuat lanh, thuat canh, thuat nganh
tra nang » thi nang, kha nang, da nang
dung sai » dung tai, dung va, dung dat
danh sai » danh bat, danh dau, hanh san
anh tra » anh trac, anh ta, thanh tra
van dau » van dao, phan dau
van cau » van hau, van chat, toan cau
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai
dong » cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat anh tra nang o hoi. thi ((van cau) or (van dau)) xuc va ((danh sai) or (dung sai)) tu dong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat anh tra nang o hoi. thi ((van cau) OR (van dau)) xuc va ((danh sai) OR (dung sai)) tu dong.
• Adding a wildcard symbol may retrieve word variants: thuat anh tra nang o hoi. thi ((van cau) or (van dau)) xuc va ((danh sai) or (dung sai)) tu dong*.