Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, van hieu
cham xuc » cam xuc, chat xuc, cham soc
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
va dung » van dung, va duong, vat dung
vu cham » va cham, vu kham, tu cham
nang xa » lang xa, nang ma, mang xa
hieu vu » hieu va, hieu ve, hieu su
va tieu » van tieu, vay tieu, va dieu
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ky ((nang xa) or (nang x)) hoi. hieu vu cham xuc va dung tai ((va thieu) or (va tieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky ((nang xa) OR (nang x)) hoi. hieu vu cham xuc va dung tai ((va thieu) OR (va tieu)).
• Adding a wildcard symbol may retrieve word variants: bo sach ky ((nang xa) or (nang x)) hoi. hieu vu cham xuc va dung tai ((va thieu) or (va tieu))*.