Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh doanh » chinh doanh, doanh doanh, kinh doanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
thanh pham » thanh phan, thanh pho, thanh hai
than phan » thanh phan, toan phan, thanh nhan
ho chieu » theo chieu, hoc thieu, doi chieu

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