Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
doanh vi » doanh va, doan vi, doanh vien
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cuu tre, cua triet, dua tren
xang o » lang o, tang o, dang o
va lam » van lam, va lap
cua te » cua tu
cua su » qua su
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty xang o hoi. lieu va lam xuc ban doanh vi ((((cua tre) or (cua te))) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang o hoi. lieu va lam xuc ban doanh vi ((((cua tre) OR (cua te))) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang o hoi. lieu va lam xuc ban doanh vi ((((cua tre) or (cua te))) or (cua su))*.