Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh doanh » hanh doanh, chinh doanh, doanh doanh
doi chieu » doc hieu, doi chi, ho chieu
vuong dan » huong dan, xuong dan, vuong dao
tuong dan » huong dan, tung dan, xuong dan
cua hong » cua huong, cua khong, cua hang
than tap » toan tap, han tap, phan tap

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 doanh ((cua hong) OR (cua cong)) ((vuong dan) or (tuong dan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh doanh ((cua hong) OR (cua cong)) ((vuong dan) OR (tuong dan)) than tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh doanh ((cua hong) OR (cua cong)) ((vuong dan) or (tuong dan)) than tap*".