Perhaps you should try some spelling variations:
su sach » so sach
han tai » hang tai, nhan tai, van tai
ve chat » va chat, van chat
vu cham » va cham, vu kham, tu cham
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
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
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) OR (vu sach)) y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang xa hoi. hieu ((vu cham) OR (ve chat)) xuc va han tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va thiet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) y nang xa hoi. hieu ((vu cham) or (ve chat)) xuc va han tai va thiet*.