Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
tac chong » cac chuong, cac cong, cac chung
chong dau » cong dau, hang dau, cong dan
trung ha » trung hoc, trung tam, trung cap
ha trong » hoa trong, hai trong, hat trong
cong tac » cong ty

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) or (thien anh)) - thanh trung ha trong cong tac chong dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh trung ha trong cong tac chong dau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - thanh trung ha trong cong tac chong dau*.