Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh vung » thanh vuong, thanh tung, thanh hung
tang bang » dang bang, tang ban, tang quang
cong tac » cong ty
toan cao » toan tap
toan ban » van ban
tam ban » tai ban, tao ban, tay ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - thanh vung ((tang bang) or (tam ban)) cong tac ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - thanh vung ((tang bang) OR (tam ban)) cong tac ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - thanh vung ((tang bang) or (tam ban)) cong tac ((toan cao) or (toan ban))*.