Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, pham duc
cao hoi » cau hoi, co hoi, cao hoc
hieu vu » hieu va, hieu ve, hieu su
dau cua » day cua, cau cua, dan cua
y nang » ky nang, ly nang, v nang
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: toc sach y nang cao hoi. hieu vu ((cham xuc) OR (cham soc)) va dan ((dau cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang cao hoi. hieu vu ((cham xuc) OR (cham soc)) va dan ((dau cua) OR (dai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y nang cao hoi. hieu vu ((cham xuc) OR (cham soc)) va dan ((dau cua) or (dai cua)) te*".