Perhaps you should try some spelling variations:
tran thanh » ban thanh, quan thanh
theo chieu » theo tieu, ho chieu, theo chu
van thanh » ban thanh, van tuan
bang cong » dang cong, bang song, hang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: ((theo chieu) or (doi khi)) xanh - manh ((tran thanh) or (van thanh)) bang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi khi)) xanh - manh ((tran thanh) OR (van thanh)) bang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi khi)) xanh - manh ((tran thanh) or (van thanh)) bang cong dan toan cau*.