Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cap » truong cao, trung tam
cap dung » ap dung, cao dung, chan dung
cong tac » cong ty
ran cau » van cau, ban cau, can cau

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - thanh trung cap dung ((cong san) OR (cong tac)) ran cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - thanh trung cap dung ((cong san) OR (cong tac)) ran cau*.