Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chieu sang » chieu sach, chieu xanh, hieu lang
lieu tinh » trieu tinh, diep tinh, bien tinh
cong thai » cong hai, hong thai, cong tac
dung cong » dung trong
thanh phi » thanh pho, thanh phan, thanh pham
thai lua » thai luan, thai luat, thai cua
lua dung » qua dung, luan hung, qua duong
phi phi » chi phi, phi thi, thi phi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (lieu tinh)) - cong thai lua dung cong thanh phi phi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (lieu tinh)) - cong thai lua dung cong thanh phi phi.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (lieu tinh)) - cong thai lua dung cong thanh phi phi*.