Perhaps you should try some spelling variations:
doanh giai » doanh giao, doanh ngoai, doanh tai
van doanh » toan doanh, van dong, van thanh
giai cuu » gian cua, giai mau, gia cua
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
cac dac » cac dan, cac dai, cac bac
cac duc » cac du, cao duc, cac nuoc
cuu tre » cua tre, cau tren, cau treo
x hoi » xa hoi, o hoi, x ho

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) or (thu sach)) ky nang x hoi. hieu van ((cac duc) or (cac dac)) van doanh giai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ky nang x hoi. hieu van ((cac duc) OR (cac dac)) van doanh giai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ky nang x hoi. hieu van ((cac duc) or (cac dac)) van doanh giai cuu tre*.