Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
manh hung » anh huong
nang cong » nang song, dang cong, bang cong
doc hieu » toc thieu, hoc hien
hung chu » nhung chu, hung thu, chung chou
chu nang » chuc nang, chua nang, cuu nang
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) tinh - manh hung chu nang cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) tinh - manh hung chu nang cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) tinh - manh hung chu nang cong van toan ban*.