Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, hoc thieu, doi chieu
trung ap » trung cap, trung lap, trung tam
cong san » cong tac
khan cap » khan ap, than cap, phan cac
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: ho chieu xanh - thanh trung ap dung cong san ((khan cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung ap dung cong san ((khan cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung ap dung cong san ((khan cap) or (khoan cam))*.