Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
thanh thuong » thanh huong, thanh chuong, khanh thuong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap
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: doi chieu sang - ((thanh thuong) or (thanh phuong)) va dung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((thanh thuong) OR (thanh phuong)) va dung cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((thanh thuong) or (thanh phuong)) va dung cong tac than cau*.