Perhaps you should try some spelling variations:
doanh doanh » doanh hoan, doanh thanh, dong doanh
luan bang » luan nang, luan ban, luan tang
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
toan » tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chu)) xanh - ((doanh doanh) or (toan doanh)) luan bang cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) xanh - ((doanh doanh) OR (toan doanh)) luan bang cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - ((doanh doanh) or (toan doanh)) luan bang cong tac phan tu*.