Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cong cong » cong dong, trong cong, dung cong
van thanh » ban thanh
theo toc » ho toc, thac toc, theo bo
theo don » theo dong, theo doi, theo duong
van tuan » van quan, van ban, anh tuan

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

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