Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
tran viet » trien viet, gian viet, san viet
trong tac » trong cac, tuong tac, trong tan
tran vat » tran van, tran nhat, trang vai
tac van » tac vang, cac van, tac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((chieu sang) OR (chieu sach)) - hanh ((tran vat) or (tran viet)) dung trong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((chieu sang) OR (chieu sach)) - hanh ((tran vat) OR (tran viet)) dung trong tac van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((chieu sang) OR (chieu sach)) - hanh ((tran vat) or (tran viet)) dung trong tac van ban".
• Adding a wildcard symbol may retrieve word variants: hoi ((chieu sang) OR (chieu sach)) - hanh ((tran vat) or (tran viet)) dung trong tac van ban*.