Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
dam thuc » am thuc, dan thuc, dai thuc
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
cam tuc » cam xuc, cam tu, nam truc
xa hanh » xa thanh, xa khanh, va hanh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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 sac ky nang x hoi. hieu van ((((cam tuc) or (dam thuc))) or (nam thuc)) xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu van ((((cam tuc) OR (dam thuc))) OR (nam thuc)) xa hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu van ((((cam tuc) or (dam thuc))) or (nam thuc)) xa hanh vai cua tre*.