Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
cua tre » cua te, cua triet, dua tren
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cau tren, cau treo
van cau » van dau, van hau, van chat
tu sac » tu sach, tu cac, tu san
sac my » sac ky
tuc va » truc va, tuc xa, duc va
va xa » va xac, va xay, va xu
my va » may va, ly va, me va

You may be able to get more results by adjusting your search query.

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