Perhaps you should try some spelling variations:
van chat » cao chat
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va cham » va tham
va chat » va phat, cao chat, hoa chat
xuc van » duc van, luc van, vuc van
van han » van hanh, van phan, van nhan
han tai » hang tai, nhan tai, van tai
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 ky nang xa hoi. hieu ((va cham) or (((van chat) or (va chat)))) xuc van han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ((va cham) OR (((van chat) OR (va chat)))) xuc van han tai va thiet.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((va cham) or (((van chat) or (va chat)))) xuc van han tai va thiet*.