Perhaps you should try some spelling variations:
hang doanh » hanh doanh, nhung doanh, van doanh
nhung bong » nhung cong, nhung bang, nhung chong
hieu sach » chieu sach, dien sach, hieu cac
hieu cach » hieu cac, chieu sach, hieu ca
van thanh » ban thanh, van tuan
cua nhung » va nhung
bong van » song van, tong van, hong van
van toan » van tuan, van tan, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu sach) OR (hieu cach)) - ((hang doanh) or (van thanh)) cua nhung bong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu sach) OR (hieu cach)) - ((hang doanh) OR (van thanh)) cua nhung bong van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu sach) OR (hieu cach)) - ((hang doanh) or (van thanh)) cua nhung bong van toan tap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu sach) OR (hieu cach)) - ((hang doanh) or (van thanh)) cua nhung bong van toan tap*.