Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
tu ban » thu ban, te ban
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san

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) or (tu ban)) ky nang xa hoi. hieu van tham ((xuc va) OR (tuc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu ban)) ky nang xa hoi. hieu van tham ((xuc va) OR (tuc va)) hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu ban)) ky nang xa hoi. hieu van tham ((xuc va) OR (tuc va)) hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu ban)) ky nang xa hoi. hieu van tham ((xuc va) OR (tuc va)) hanh vi cua tre*.