Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
sach thu » sach thue, sach thieu, sach tham
cham xuc » cam xuc, chat xuc, cham soc
hai cua » thai cua, hoi cua, lai cua
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, xach tay
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
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 ty) OR (sach thu)) nang o hoi. hieu qua cham xuc va hanh ((hai cua) OR (dai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ty) OR (sach thu)) nang o hoi. hieu qua cham xuc va hanh ((hai cua) or (dai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ty) OR (sach thu)) nang o hoi. hieu qua cham xuc va hanh ((hai cua) or (dai cua)) tre*.