Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
tranh va » tranh van, trinh va, thanh va
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 xanh - canh ((tranh va) or (trang va)) dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh ((tranh va) OR (trang va)) dung cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh ((tranh va) or (trang va)) dung cong dan toan cao*.