Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cham xuc » cam xuc, chat xuc, cham soc
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
lai cau » lai cam, loi cau, loai cay
va cham » va chat, va tham
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang ((x hoi) or (o hoi)). hieu va cham xuc va hanh ((lai cau) OR (lai chau)) treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang ((x hoi) OR (o hoi)). hieu va cham xuc va hanh ((lai cau) OR (lai chau)) treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang ((x hoi) or (o hoi)). hieu va cham xuc va hanh ((lai cau) OR (lai chau)) treo".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang ((x hoi) or (o hoi)). hieu va cham xuc va hanh ((lai cau) OR (lai chau)) treo*.