Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
cham xuc » cam xuc, chat xuc, cham soc
vai cua » hai cua, lai cua, bai cua
va hanh » van hanh, va thanh, va danh
vu sach » vu bach, vu khach
ty nang » ky nang, ty xang, ty hang
su sach » so sach
nang o » nang co, nang ho, nang ro
xuc va » duc va, tuc va, luc va
o hoi » co hoi, o hoc, o hai

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: ((vu sach) OR (su sach)) ty nang o hoi. hieu qua cham xuc va hanh ((vai cua) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ty nang o hoi. hieu qua cham xuc va hanh ((vai cua) or (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ty nang o hoi. hieu qua cham xuc va hanh ((vai cua) or (dai cua)) tre*.