Perhaps you should try some spelling variations:
dung cong » dung trong
chu sang » thu sang, chieu sang, chuc nang
chu bang » thu bang, chuc nang, chu quang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
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 ((chu sang) OR (chu bang)) - anh tang cua dung cong tac tren cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sang) OR (chu bang)) - anh tang cua dung cong tac tren cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sang) OR (chu bang)) - anh tang cua dung cong tac tren cau*.