Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
luan nhung » luan chung, quan nhung, luan phuong
dong thanh » truong thanh
tieu sach » chieu sach, dien sach, te sach
luan hung » luan chung, lan hung, luan ung
thanh can » thanh san, thanh van, thanh tan
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - canh doanh ((luan nhung) or (luan hung)) dong thanh can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - canh doanh ((luan nhung) OR (luan hung)) dong thanh can cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - canh doanh ((luan nhung) or (luan hung)) dong thanh can cau*.