Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hanh dung » thanh dung, anh dung, hanh dong
dung quan » dung quang, dung luan, luong quan
manh toan » thanh toan, anh tuan, tinh toan
chu xanh » chu manh, chieu xanh, chua xang
toan tap » toan ban
chu van » cuu van, chu han

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: theo ((chu xanh) OR (chu van)) - hanh dung quan ((nhung cong) OR (thong cong)) manh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chu van)) - hanh dung quan ((nhung cong) OR (thong cong)) manh toan tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu van)) - hanh dung quan ((nhung cong) OR (thong cong)) manh toan tap*.