Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
doanh lan » doanh luan, doanh ban, doanh van
dung cong » dung trong
doc hieu » hoc thieu, hoc hien
lan dung » van dung, dan dung, lan hung
cong van » cong vang, cong san, song van
van gian » van giang, dan gian, van giao
gian dan » gian lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) nganh - van doanh lan dung cong van gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) nganh - van doanh lan dung cong van gian dan.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) nganh - van doanh lan dung cong van gian dan*.