Perhaps you should try some spelling variations:
thanh thanh » nhanh thanh, thanh toan, thanh phan
hieu quang » thieu quang, hieu quan, hieu qua
trong phat » trong thuat, trong nha, trong hoat
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh tap » thanh lap, thanh tai, thanh tay
doc hieu » toc thieu, hoc thieu, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu quang - thanh ((trong phat) or (truong cao)) nhung cong thanh thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu quang - thanh ((trong phat) OR (truong cao)) nhung cong thanh thanh tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu quang - thanh ((trong phat) or (truong cao)) nhung cong thanh thanh tap*.