Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
van han » van phan, van nhan, van hoan
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 ky nang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ((van han) OR (van hanh)) mai va thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ((van han) or (van hanh)) mai va thiet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ((van han) or (van hanh)) mai va thiet*.