Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
cua tre » cua te, cua triet, dua tren
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
tuc va » truc va, tuc xa, duc va
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: su sach tu 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: su sach tu nang xa hoi. hieu ve cam ((tuc va) or (thuc va)) hanh vi ((cua tre) or (cuu tre))*.