Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
cua triet » cua viet, su triet
thu sach » tu sach, thuat sach, thuoc sach
va triet » va thiet, va trien, ve triet
cao hoc » co hoc, cho hoc, chat hoc
va tham » van tham, va cham, va thanh
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
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 cao hoc. lieu va tham thuc va hanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang cao hoc. lieu va tham thuc va hanh vi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach y nang cao hoc. lieu va tham thuc va hanh vi ((cua triet) or (va triet))*.