Perhaps you should try some spelling variations:
hoa thiet » hoc thiet, toan thiet, hoa viet
ha thiet » va thiet, ho thiet, hanh thiet
cham xuc » cam xuc, chat xuc, cham soc
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
su sach » so sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
vu sach » vu bach, vu khach
ve cham » va cham, ve chat, vu cham
xuc va » duc va, tuc va, luc va

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) OR (vu sach)) ty nang xa hoi. hieu ve cham xuc va hanh vi ((ha thiet) OR (hoa thiet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty nang xa hoi. hieu ve cham xuc va hanh vi ((ha thiet) or (hoa thiet))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ty nang xa hoi. hieu ve cham xuc va hanh vi ((ha thiet) or (hoa thiet))*.