Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van cac » van hac, van bac, dan cac
van cau » van dau, van hau, van chat
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
su cac » tu cac, su cao, su can
toc va » hoc va, toc ta, tuc va

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 (su cac)) ky nang xa hoi. hieu ((van cac) OR (van cau)) toc va hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (su cac)) ky nang xa hoi. hieu ((van cac) OR (van cau)) toc va hanh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (su cac)) ky nang xa hoi. hieu ((van cac) OR (van cau)) toc va hanh lai cua tre*.