Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
toc chieu » toc thieu, doc hieu, hoc thieu
dung cong » dung trong
cong lang » cong vang, cong luong, cong quang
trung ap » trung cap, trung lap, trung tam
than cap » khan cap, thanh lap, thanh cac
phan lap » phan dau
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: toc chieu sang - hanh trung ap dung cong lang ((than cap) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sang - hanh trung ap dung cong lang ((than cap) OR (phan lap))*.