Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong dan » cong san, cong tan, huong dan
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chieu sach) or (chu van)) - hanh tang luan nhung cong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chieu sach) OR (chu van)) - hanh tang luan nhung cong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: chao ((chieu sach) or (chu van)) - hanh tang luan nhung cong dan ((toan ban) or (van ban))*.