Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
anh trong » anh thuong, dinh trong, lang trong
trong van » trong cac
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong tac » cong ty
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: hoc ((chieu sach) or (trieu tinh)) - anh trong van dung cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (trieu tinh)) - anh trong van dung cong tac van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (trieu tinh)) - anh trong van dung cong tac van ban*.