Perhaps you should try some spelling variations:
te sach » toc sach
cao hoc » co hoc, cho hoc, chat hoc
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
dau cua » day cua, cau cua, dan cua
y nang » ly nang, v nang, may nang
soc ca » soc cua, hoc ca, soc ba
ca dan » cac dan, ca dao

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 ((y nang) or (ky nang)) cao hoc. hieu vu cham soc ca dan ((dau cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ky nang)) cao hoc. hieu vu cham soc ca dan ((dau cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ky nang)) cao hoc. hieu vu cham soc ca dan ((dau cua) or (dai cua)) te*.