Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh hang » thanh hang, hang hang, hanh han
dung cong » dung trong
cong tac » cong ty
tac tren » rac tren, tai tren, tap tren
tren cau » tren ca, tren cay, tren tau
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((chieu sang) or (hieu manh))) or (trieu tinh)) - hanh hang va dung cong tac tren cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu sang) OR (hieu manh))) OR (trieu tinh)) - hanh hang va dung cong tac tren cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu sang) or (hieu manh))) or (trieu tinh)) - hanh hang va dung cong tac tren cau*.