Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
van anh » van thanh, tuan anh, van minh
hieu ve » hieu va
cac so » cac co, cac bo, cac ho
so van » su van, vo van
anh di » danh di, xanh di, anh d
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (cac ky)) nang x hoi. ((hieu ve) OR (hieu van)) cac so van anh di cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (cac ky)) nang x hoi. ((hieu ve) OR (hieu van)) cac so van anh di cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (cac ky)) nang x hoi. ((hieu ve) OR (hieu van)) cac so van anh di cua triet*.