Perhaps you should try some spelling variations:
doanh luan » doanh nhan
khac quan » khac duan, khoan quan, thac quang
tang luan » dung luan
vu doanh » va doanh, su doanh, van doanh
luan tri » luan thi, luat tri, quang tri
vu khac » vu kham, vu khanh, bui khac
vu tang » vu dang, vu bang, vu nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu khac quan tri ) or ((( vu doanh luan thiet ) or ( vu tang luan tri ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu khac quan tri ) OR ((( vu doanh luan thiet ) OR ( vu tang luan tri )))).
• Adding a wildcard symbol may retrieve word variants: (( vu khac quan tri ) or ((( vu doanh luan thiet ) or ( vu tang luan tri ))))*.