Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
ve chat » va 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.

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