Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tang quan » tang luan, nang quan, tong quan
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
san cau » van cau, ban cau, can cau
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - anh tang quan nhung cong tac ((san cau) or (ban can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh tang quan nhung cong tac ((san cau) OR (ban can))*.