Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh dau » hang dau, danh dau, han dau
chat xuc » chat huu, cam xuc, chat cua
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu van ((chat xuc) or (chao xu)) va hanh dau ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu van ((chat xuc) OR (chao xu)) va hanh dau ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu van ((chat xuc) or (chao xu)) va hanh dau ((cua tre) or (su triet))*.