Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
vu cham » va cham, vu kham, tu cham
ve chat » va chat, van chat
han tai » hang tai, nhan tai, van tai
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh
tai va » thai va, mai va, tri va

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 y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va (thiet OR thieu)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((vu cham) OR (ve chat)) xuc va han tai va (thiet OR thieu).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va (thiet OR thieu)".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va (thiet OR thieu)*.