Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
luan han » luan hoan, luan phan, luan van
cong van » cong vang, cong san, song van
cong tac » cong ty
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: hoc thieu tinh - anh tang luan han ((cong van) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - anh tang luan han ((cong van) OR (cong tac)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - anh tang luan han ((cong van) or (cong tac)) toan ban*.