Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tinh bang » tinh sang, tinh lang, tinh quang
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

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 - ((anh tang) or (tinh bang)) va nhung ((cong dan) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((anh tang) OR (tinh bang)) va nhung ((cong dan) OR (cong tan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((anh tang) or (tinh bang)) va nhung ((cong dan) or (cong tan)) toan tap*.