Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
hang tai » hang va, dung tai
va thieu » va thiet, va hieu, va tieu
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hang » van hang, va nang, va lang
xuc va » duc va, tuc va, luc va
tai va » thai va, mai va, tri va

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

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