Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
ban banh » ban hanh, ban anh, ban danh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, tu cach
cam cuc » cam xuc, cham cuu, pham cuc
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
cua te » cua tu

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) or (te sach)) ky lang xa hoi. hieu van cam cuc ((ban banh) or (ban doanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky lang xa hoi. hieu van cam cuc ((ban banh) OR (ban doanh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky lang xa hoi. hieu van cam cuc ((ban banh) or (ban doanh)) vai cua te*.