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
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
trung ap » trung cap, trung lap, trung tam
ap dung » xay dung, van dung
can cau » van cau, ca cau, cac cau
ban cau » bang cau, ban can, van cau

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 thanh ((can cau) or (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung ap dung cong thanh ((can cau) OR (ban cau)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ap dung cong thanh ((can cau) or (ban cau))*.