Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
tran van » luan van
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan tap » toan ban

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 xanh - canh tran van nhung ((cong dan) OR (((cong tan) OR (cong san)))) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh tran van nhung ((cong dan) or (((cong tan) OR (cong san)))) toan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tran van nhung ((cong dan) or (((cong tan) OR (cong san)))) toan tap*.