Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
may nang » may nong, ky nang, cam nang
cac xuc » cac nuoc, chat xuc, cac cuoc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua

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: toc sach ((may nang) OR (v nang)) ma hoa. lieu va ((cac xuc) OR (cam xuc)) va danh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((may nang) or (v nang)) ma hoa. lieu va ((cac xuc) OR (cam xuc)) va danh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ((may nang) or (v nang)) ma hoa. lieu va ((cac xuc) OR (cam xuc)) va danh vi cua tre*.