Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
anh tang » anh bang, anh dang, anh nang
va duong » van duong, va tuong, va huong
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan ban » van ban
tang va » trang va, tang van, thang va

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 xanh - anh tang va duong ((cong tan) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - anh tang va duong ((cong tan) OR (cong tac)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh tang va duong ((cong tan) or (cong tac)) toan ban*.