Perhaps you should try some spelling variations:
doanh luan » doanh nhan
van doanh » toan doanh, van dong, van thanh
luan bang » luan nang, luan ban, luan tang
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tac phan » tac pham, tai phan, cac phan
tac phat » tac pham, tam phat, tan phat

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 (hoc hien)) tinh - van doanh luan bang cong ((tac phan) or (tac phat)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) tinh - van doanh luan bang cong ((tac phan) OR (tac phat)) cac.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) tinh - van doanh luan bang cong ((tac phan) or (tac phat)) cac*.