Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (theo chu)) xanh - canh tranh cua dung cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (theo chu)) xanh - canh tranh cua dung cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (theo chu)) xanh - canh tranh cua dung cong dan than cap*.