Perhaps you should try some spelling variations:
anh thai » anh thi, nhanh thai, tranh thai
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
anh tai » hanh tai, vanh tai, xanh tai
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
su sac » su cac, su xac

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 sac) OR (su sach)) ky nang xa hoi. hieu van cam duc van ((anh tai) OR (anh thai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su sach)) ky nang xa hoi. hieu van cam duc van ((anh tai) OR (anh thai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su sach)) ky nang xa hoi. hieu van cam duc van ((anh tai) OR (anh thai)) cua tre*.