Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh chau » thanh cham, thanh chu, thanh hai
thanh cha » thanh ha, thanh nha, thanh phan
trung ap » trung cap, trung lap, trung tam
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung ap dung ((cong van) or (song van)) ((thanh chau) OR (thanh cha))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung ap dung ((cong van) OR (song van)) ((thanh chau) OR (thanh cha)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung ap dung ((cong van) or (song van)) ((thanh chau) OR (thanh cha))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ap dung ((cong van) or (song van)) ((thanh chau) OR (thanh cha))*.