Perhaps you should try some spelling variations:
danh xay » dang xay, manh xay, anh xay
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
xay hoi » xa hoi, tay hoi, cay phoi
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
sach 2 » sach y
2 danh » 1 danh

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 2 danh xay hoi. hieu qua cac xuc van hanh dai cua vat~.
• Adding a wildcard symbol may retrieve word variants: su sach 2 danh xay hoi. hieu qua cac xuc van hanh dai cua vat*.