Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
hieu manh » chieu xanh, hieu nganh, dieu hanh
anh hang » anh hoang, anh hung, anh bang
cua dang » cua cong
cong tac » cong ty
tac tren » rac tren, tai tren, tap tren
tren cau » tren ca, tren cay, tren tau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (nhieu tang)) - anh hang ((cua dang) OR (cua ban)) cong tac tren cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (nhieu tang)) - anh hang ((cua dang) OR (cua ban)) cong tac tren cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (nhieu tang)) - anh hang ((cua dang) OR (cua ban)) cong tac tren cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (nhieu tang)) - anh hang ((cua dang) OR (cua ban)) cong tac tren cau*.