Perhaps you should try some spelling variations:
luan chung » luan chinh
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, anh dung, hanh dong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than tap » toan tap, han tap, phan tap

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: ((hoc thieu) OR (doi chieu)) xanh - hanh dung luan chung ((cong dan) OR (cong san)) than tap~.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) xanh - hanh dung luan chung ((cong dan) or (cong san)) than tap*.