Perhaps you should try some spelling variations:
doanh vang » doanh van, doanh sang, doanh quang
van doanh » toan doanh, van dong, van thanh
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
tang ma » mang may, tang van
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, vuc van
cua te » cua tu
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach kho tang ma hoa. hieu van cam xuc van doanh vang ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach kho tang ma hoa. hieu van cam xuc van doanh vang ((cua te) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: su sach kho tang ma hoa. hieu van cam xuc van doanh vang ((cua te) or (cua su))*.