Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
dau cua » day cua, cau cua, dan cua
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang co » nang cao, nang doc, nang noi
co hoi » co hoc, co loi
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) y nang co hoi. hieu vu cham xuc va dan ((dau cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang co hoi. hieu vu cham xuc va dan ((dau cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y nang co hoi. hieu vu cham xuc va dan ((dau cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y nang co hoi. hieu vu cham xuc va dan ((dau cua) or (dai cua)) te*.