Perhaps you should try some spelling variations:
thanh trung » thanh tung
vien nganh » vien thanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
trung cap » truong cao, trung tam
trong san » trong cac, cong san, trong ca
cap dung » ap dung, cao dung, chan dung
dong san » cong san, dong bang, dong von

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (vien nganh)) - thanh trung cap dung ((trong san) OR (dong san)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (vien nganh)) - thanh trung cap dung ((trong san) OR (dong san)) van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (vien nganh)) - thanh trung cap dung ((trong san) OR (dong san)) van ban*".