Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tung » thanh cong
cap dung » cao dung, chan dung, cach dung
song van » hoang van, trong van, duong van
van toan » van tuan, van tan, van thanh
toan ban » van ban
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: doi ((chieu sang) or (chieu sach)) - thanh tung ((cap dung) OR (ap dung)) song van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu sach)) - thanh tung ((cap dung) OR (ap dung)) song van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) or (chieu sach)) - thanh tung ((cap dung) OR (ap dung)) song van toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chieu sach)) - thanh tung ((cap dung) OR (ap dung)) song van toan ban*.