Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
tran tuan » tran quang, tran thanh, tranh luan
tran xuan » tran quang, tran van
dung cong » dung trong
cong tac » cong ty
tac trai » tam trai, khac trai, rac thai
trai cau » tra cau, trai chan, toan cau

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