Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh trang cua nhung ((cong dan) or (((cong tan) OR (cong san)))) thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trang cua nhung ((cong dan) OR (((cong tan) OR (cong san)))) thanh san.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trang cua nhung ((cong dan) or (((cong tan) OR (cong san)))) thanh san".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trang cua nhung ((cong dan) or (((cong tan) OR (cong san)))) thanh san*.