Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
tranh ap » tranh chap, tranh ban, tranh cac
cong van » cong vang, cong san, song van
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac
ap dung » xay dung, van dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh tranh ap dung cong van ((than cau) OR (than cap))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh tranh ap dung cong van ((than cau) or (than cap))*.