Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cao xuc » cam xuc, cao suc, chat xuc
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach v nang x hoi. lieu va ((cao xuc) OR (cao duc)) va hanh vi ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach v nang x hoi. lieu va ((cao xuc) OR (cao duc)) va hanh vi ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach v nang x hoi. lieu va ((cao xuc) OR (cao duc)) va hanh vi ((cua tre) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach v nang x hoi. lieu va ((cao xuc) OR (cao duc)) va hanh vi ((cua tre) or (cua tu))*.