Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
dung cong » dung trong
trung ap » trung cap, trung lap, trung tam
cong van » cong vang, cong san, song van
ap dung » xay dung, van dung
tan cao » toan cao, tay cao, tan ca
tao cao » bao cao, toan 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 ((tan cao) OR (tao 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 ((tan cao) OR (tao 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 ((tan cao) OR (tao cao))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (trieu tinh)) - hanh trung ap dung cong van ((tan cao) OR (tao cao))*.