Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
trung pha » trung phan, trung phat, truong phan
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
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 ((trung pha) or (trung ha)) nhung cong tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung pha) OR (trung ha)) nhung cong tac than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung pha) or (trung ha)) nhung cong tac than cap*.