Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » manh cua
doanh cua » doanh luan
nang cong » nang song, dang cong, bang cong
ngang van » ngan van, nang van, hoang van
phan van » pham van, thanh van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - canh ((tranh cua) OR (doanh cua)) nang cong ((ngang van) or (phan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh ((tranh cua) OR (doanh cua)) nang cong ((ngang van) OR (phan van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh ((tranh cua) OR (doanh cua)) nang cong ((ngang van) or (phan van)) ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((tranh cua) OR (doanh cua)) nang cong ((ngang van) or (phan van)) ban*.