Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh dung » thanh dung, anh dung, hanh dong
hoang van » hang va
dung cua » dung luan, dung cho
cua nang » chua nang, cua dang, cua hang
hang van » hang va, dang van, tang van
toan ban » van ban

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 (nhiet dong)) - hanh dung cua nang ((hang van) OR (hoang van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhiet dong)) - hanh dung cua nang ((hang van) OR (hoang van)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhiet dong)) - hanh dung cua nang ((hang van) OR (hoang van)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhiet dong)) - hanh dung cua nang ((hang van) OR (hoang van)) toan ban*.