Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tranh hang » trinh han, tran hong
tran hoang » tran hong, quan hoang, tran quang
hoc thieu » toc thieu, hoc hien
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap
va lang » va nang, hoa lang

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 - ((tranh hang) OR (tran hoang)) va lang ((cong dan) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((tranh hang) OR (tran hoang)) va lang ((cong dan) OR (cong tan)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((tranh hang) OR (tran hoang)) va lang ((cong dan) or (cong tan)) than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((tranh hang) OR (tran hoang)) va lang ((cong dan) or (cong tan)) than cau*.