Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
truong cap » truong cao, trung cap, trong cap
hoc thieu » toc thieu, hoc hien
truong ca » truong cao, truong va, trong ca
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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 - thanh ((truong cap) or (truong ca)) dung ((cong ban) OR (cong san)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong cap) OR (truong ca)) dung ((cong ban) OR (cong san)) than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((truong cap) or (truong ca)) dung ((cong ban) OR (cong san)) than cap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong cap) or (truong ca)) dung ((cong ban) OR (cong san)) than cap*.