Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, cham soc, pham duc
chat xuc » chat huu, cam xuc, chao xu
nang doc » nang luc
hieu ve » hieu va, hieu van
doc hoc » duoc hoc, toc hoc, duc hoc
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
va cau » van cau, va dau, va cao

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 ky nang doc hoc. hieu ve ((cham xuc) OR (chat xuc)) va hanh ((va cau) or (va cac)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang doc hoc. hieu ve ((cham xuc) OR (chat xuc)) va hanh ((va cau) OR (va cac)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang doc hoc. hieu ve ((cham xuc) OR (chat xuc)) va hanh ((va cau) or (va cac)) tren".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang doc hoc. hieu ve ((cham xuc) OR (chat xuc)) va hanh ((va cau) or (va cac)) tren*.