Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
han tai » hang tai, nhan tai, van tai
sach ty » sach y, sach tu, sach thu
va chat » van chat, va phat, cao chat
va han » va phan, van han, va hanh
tai va » thai va, mai va, tri va
xuc va » duc va, tuc va, luc 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: su sach ty nang xa hoi. hieu ((((ve cham) or (qua cham))) or (va chat)) xuc va han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((((ve cham) OR (qua cham))) OR (va chat)) xuc va han tai va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ((((ve cham) or (qua cham))) or (va chat)) xuc va han tai va thiet*.