Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu xanh » chieu xanh, hieu manh, hieu nganh
chung bat » nhung bai, chung ta, chung nam
doc hieu » toc thieu, hoc thieu, hoc hien
cap dung » ap dung, chan dung, cach dung
cao dung » cao dang, cao dong, cao ung
bat than » ban than, bay than, ban thanh
than cap » khan cap, thanh lap, thanh cac

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 xanh - thanh trung ((cap dung) or (cao dung)) chung bat than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh trung ((cap dung) OR (cao dung)) chung bat than cap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh trung ((cap dung) or (cao dung)) chung bat than cap*.