Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
dai hoi » dai hai, dai moi
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua

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

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