Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tuc va » truc va, tuc xa, duc va
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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: thu sach y nang xa hoi. hieu ve cam ((tuc va) OR (thuc va)) hanh vi ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ve cam ((tuc va) or (thuc va)) hanh vi ((cua tre) or (cuu tre))*.