Perhaps you should try some spelling variations:
cuc triet » cua triet, su triet, cac trieu
cham xuc » cam xuc, chat xuc, cham soc
van dinh » van minh, van dich, va dinh
so sach » so sanh, bo sach, co sach
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ky sang) OR (ky dang)) ma hoa. hieu vu cham xuc ((va hanh) or (van dinh)) tai cuc triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ky sang) OR (ky dang)) ma hoa. hieu vu cham xuc ((va hanh) OR (van dinh)) tai cuc triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ky sang) OR (ky dang)) ma hoa. hieu vu cham xuc ((va hanh) or (van dinh)) tai cuc triet".
• Adding a wildcard symbol may retrieve word variants: so sach ((ky sang) OR (ky dang)) ma hoa. hieu vu cham xuc ((va hanh) or (van dinh)) tai cuc triet*.