Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
cua tre » cua te, cuu tre, cua triet
tuc ban » thuc ban, truc ban, tuc dan
lang xa » lang ha, dang xay, lang van
van cam » van lam, van cau, van dam
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
tu ban » thu ban, te ban
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 ky lang xa hoi. hieu ((van cam) or (van nam)) ((tuc ban) OR (tu ban)) thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang xa hoi. hieu ((van cam) OR (van nam)) ((tuc ban) OR (tu ban)) thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang xa hoi. hieu ((van cam) or (van nam)) ((tuc ban) OR (tu ban)) thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang xa hoi. hieu ((van cam) or (van nam)) ((tuc ban) OR (tu ban)) thanh vi cua tre*.