Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
tu sach » thu sach, te sach, tu cach
qua hai » qua hoat
hai xuc » hai cuc, hai xu, chat xuc
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (tu sach)) ky nang x ho. hieu qua hai xuc van hanh di cua te~.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (tu sach)) ky nang x ho. hieu qua hai xuc van hanh di cua te*.