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