Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
dieu tinh » diep tinh, lieu tinh, dien tinh
anh nang » ganh nang, anh bang, anh dang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
so dieu » bo dieu, hoc dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so dieu tinh - ((canh tranh) or (anh nang)) luan thong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so dieu tinh - ((canh tranh) OR (anh nang)) luan thong cong tan toan ban*.