Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
hanh dung » thanh dung, anh dung, hanh dong
ho chieu » hoc thieu, doi chieu, mot chieu
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) xanh - hanh dung luan chung cong ((dan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) xanh - hanh dung luan chung cong ((dan toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) xanh - hanh dung luan chung cong ((dan toan) or (dan than)) cau*.