Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
sach ty » sach y, sach tu, sach thu
dau cua » dai cua, day cua, cau cua
va dinh » van dinh, va kinh, va tinh
te sach » toc sach
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
cao hoc » cho hoc, chat hoc
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
va dan » ca dan, va dao, va dau

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 ty nang ((cao hoc) OR (co hoc)). hieu vu cham xuc ((va dinh) or (va dan)) dau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((cao hoc) OR (co hoc)). hieu vu cham xuc ((va dinh) OR (va dan)) dau cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ((cao hoc) OR (co hoc)). hieu vu cham xuc ((va dinh) or (va dan)) dau cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((cao hoc) OR (co hoc)). hieu vu cham xuc ((va dinh) or (va dan)) dau cua tre*.