Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh tang » hanh trang, anh tang, hanh mang
nang cong » nang song, dang cong, bang cong
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat
tang va » trang va, tang van, thang va
va nang » van nang, da nang, cam nang

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 sach) OR (chinh sach)) - hanh tang va nang cong ((dan than) or (dan chan)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh tang va nang cong ((dan than) OR (dan chan)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - hanh tang va nang cong ((dan than) or (dan chan)) man".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - hanh tang va nang cong ((dan than) or (dan chan)) man*.