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
trung dai » truong dai, truong dao, trung tam
tong cong » cong cong, dung cong, dang cong
san khang » van khang, san chang, san khong
khang cau » hang cau, khang cu, khang chan

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 dai ((tong cong) or (trong cong)) san khang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh trung dai ((tong cong) OR (trong cong)) san khang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - thanh trung dai ((tong cong) or (trong cong)) san khang cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - thanh trung dai ((tong cong) or (trong cong)) san khang cau*.