Perhaps you should try some spelling variations:
dung luong » dung thuong, dung phuong, dung truong
luong theo » luong thi
theo luong » tien luong
hanh dung » thanh dung, anh dung, hanh dong
doc hieu » hoc thieu, hoc hien
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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: ((doc hieu) OR (toc thieu)) tinh - hanh dung luong theo luong ((dan than) OR (dan chan)) cau~.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) tinh - hanh dung luong theo luong ((dan than) or (dan chan)) cau*.