Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
canh doanh » chinh doanh, doanh doanh, kinh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
toan ban » van ban
toan cao » toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((canh doanh) or (hanh doanh)) cua dung cong dan ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((canh doanh) OR (hanh doanh)) cua dung cong dan ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((canh doanh) or (hanh doanh)) cua dung cong dan ((toan ban) or (toan cao))*.