Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
phan cong » thanh cong
cong dung » cuong dung, cong dong, cong luong
dung muon » cung muon, dung nguon, dung luong
muon danh » cuon danh, cuong danh, luan danh
danh van » doanh van, dang van, dinh van
van chat » cao chat
van van » van ban, tan van, san van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) tinh - phan cong dung muon danh van van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) tinh - phan cong dung muon danh van van chat*.