Perhaps you should try some spelling variations:
tuan tuc » tuan tu, thuan thuc, luan thuc
van tuan » van quan, van ban, anh tuan
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
nang xa » lang xa, nang ma, mang xa
vi cua » vai cua, di cua
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky

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) or (sai ky)) ((nang xa) or (nang x)) hoi. hieu van tuan tuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) ((nang xa) OR (nang x)) hoi. hieu van tuan tuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) ((nang xa) or (nang x)) hoi. hieu van tuan tuc va hanh vi cua tre*.