Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
trung va » truong va, trang va, trung ha
su sach » so sach, vu sach
truc va » thuc va, thuc vat
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
va cam » va cham, va cac, va cao
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 ((y nang) OR (v nang)) xa hoi. lieu va cam ((truc va) or (trung va)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (v nang)) xa hoi. lieu va cam ((truc va) OR (trung va)) hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (v nang)) xa hoi. lieu va cam ((truc va) or (trung va)) hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (v nang)) xa hoi. lieu va cam ((truc va) or (trung va)) hanh vi cua triet*.