Perhaps you should try some spelling variations:
nhanh dung » nhanh dong, hanh dung, nhanh hung
luan phong » luan phuong, xuan phuong, luan phan
van phong » van dong, hai phong
cong dan » cong san, cong tan, huong dan
doi chi » doi khi
dan han » dan chan, dan than, dan hanh
han tap » han tai, toan tap, nhan tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (doi chi)) tinh - nhanh dung ((luan phong) OR (van phong)) cong dan han tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc thieu) or (doi chi)) tinh - nhanh dung ((luan phong) OR (van phong)) cong dan han tap~".
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (doi chi)) tinh - nhanh dung ((luan phong) OR (van phong)) cong dan han tap*.