Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
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 » cuu tre, cua triet, dua tren
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
cua te » cua tu

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