Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
van cam » van lam, van cau, van dam
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
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: tu sach y nang x hoi. hieu ((van cam) or (van nam)) xuc va hanh dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu ((van cam) OR (van nam)) xuc va hanh dai cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu ((van cam) or (van nam)) xuc va hanh dai cua vat*.