Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
dung cong » dung trong
thi hien » thi lien, thi huyen, thi hue
thi hieu » thi chieu, thi dieu, chi hieu
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
va dung » van dung, va duong, vat dung
dan van » dang van, doan van, dao van

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 (((thi hien) or (thi hieu)))) xanh - canh tranh va dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (((thi hien) OR (thi hieu)))) xanh - canh tranh va dung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (((thi hien) or (thi hieu)))) xanh - canh tranh va dung cong dan van ban*.