Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
van anh » tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nam tu » nam thuc
di cua » dai cua, doi cua, de cua
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 ((nam thu) or (nam tu)) ((van anh) or (van thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu van ((nam thu) OR (nam tu)) ((van anh) OR (van thanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu van ((nam thu) or (nam tu)) ((van anh) or (van thanh)) di cua tre*.