Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tran » thanh trang, thanh toan, thanh tra
mot chieu » doi chieu, ho chieu
tran tuan » tran xuan, tran quang, tran thanh
nhung don » nhung van, nhung bo
dung cong » dung trong
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chieu)) xanh - thanh tran tuan ((nhung don) or (dung cong)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - thanh tran tuan ((nhung don) OR (dung cong)) tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) xanh - thanh tran tuan ((nhung don) or (dung cong)) tinh toan cau*.