Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
ban thanh » ban hanh, ban hang
thanh cap » thanh lap, hanh cap, than cap
dung cua » dung luan, dung cho
cong ban » cong bang, cong san, cong tan

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 ((dung cua) or (trung cap)) thong cong ban thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((dung cua) OR (trung cap)) thong cong ban thanh cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((dung cua) or (trung cap)) thong cong ban thanh cap*.