Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
trung ap » trung cap, trung lap, trung tam
cong van » cong vang, song van, cong tan
cong san » cong tac
ap dung » xay dung, van dung
tan cao » toan cao, tao cao, tay cao

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 sang) or (trieu tinh)) - hanh trung ap dung ((cong van) OR (cong san)) tan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (trieu tinh)) - hanh trung ap dung ((cong van) OR (cong san)) tan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (trieu tinh)) - hanh trung ap dung ((cong van) OR (cong san)) tan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (trieu tinh)) - hanh trung ap dung ((cong van) OR (cong san)) tan cao*.