Perhaps you should try some spelling variations:
cua viet » hoa viet, cua vat, cua dieu
su sach » so sach, vu sach
lang ha » long ha
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
ca viet » va viet, co viet, hoa viet
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi
xuc va » duc va, tuc va, luc va
o viet » so viet, hoc viet

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 y lang ha hoi. hieu qua cac xuc va hanh vi ((((cua viet) OR (ca viet))) OR (o viet))~.
• Adding a wildcard symbol may retrieve word variants: su sach y lang ha hoi. hieu qua cac xuc va hanh vi ((((cua viet) or (ca viet))) or (o viet))*.