Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
vu cham » vu kham, tu cham, qua cham
va cham » va chat, va tham
xuc van » duc van, luc van, vuc van
van van » van ban, tan van, san van
van tai » von tai, van tuan
ma hoi » mai hoi, xa hoi, ma hoa
tai va » thai va, mai va, tri va
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 ty nang ma hoi. hieu ((vu cham) or (va cham)) xuc van van tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang ma hoi. hieu ((vu cham) OR (va cham)) xuc van van tai va thiet.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang ma hoi. hieu ((vu cham) or (va cham)) xuc van van tai va thiet*.