Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
han tai » hang tai, nhan tai, van tai
ve cham » ve chat, ve chim, viet cham
vu cham » vu kham, tu cham, qua cham
va han » va phan, van han, va hanh
xuc va » duc va, tuc va, luc va
tai va » thai va, mai va, tri va
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
thiet » thieu

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 y nang ma hoi. hieu ((((ve cham) or (vu cham))) or (va cham)) xuc va han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ma hoi. hieu ((((ve cham) OR (vu cham))) OR (va cham)) xuc va han tai va thiet.
• Adding a wildcard symbol may retrieve word variants: so sach y nang ma hoi. hieu ((((ve cham) or (vu cham))) or (va cham)) xuc va han tai va thiet*.