Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
thu sach » tu sach, thuat sach, thuoc sach
cap phoi » cap cho
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
ky dang » ky danh
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va cau » van cau, va cac, va dau

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 dang) or (ky nang)) cap phoi. hieu van nam thuc va hanh va cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky dang) OR (ky nang)) cap phoi. hieu van nam thuc va hanh va cau triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky dang) or (ky nang)) cap phoi. hieu van nam thuc va hanh va cau triet*.