Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham thuc » phap thuc, pham chuc, nham thuc
nang dai » nang dau, nang tai, lang dai
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
dai hoi » dai hoc, dai hai, dai moi
hieu ve » hieu va
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. ((hieu ve) OR (hieu van)) pham thuc va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang dai hoi. ((hieu ve) OR (hieu van)) pham thuc va hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang dai hoi. ((hieu ve) OR (hieu van)) pham thuc va hanh vi cua triet*.