Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
tham thuc » nham thuc, pham thuc, tam thuc
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve tham » va tham, ve cham, vi tham
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (hoc nganh)) ky nang x hoi. hieu ve tham thuc va hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc nganh)) ky nang x hoi. hieu ve tham thuc va hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc nganh)) ky nang x hoi. hieu ve tham thuc va hanh di cua triet*.