Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh doi » thanh doi, hanh noi, hang doi
cam thu » nam thu, cac thu, ca thu
doi cua » dai cua, hoi cua
sang ky » sang kyo, dang ky, tang ky
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
thu va » thuc va, thue va, tu va
ban ky » van ky, dan ky

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 ((ban ky) OR (sang ky)) lang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh doi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((ban ky) or (sang ky)) lang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh doi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((ban ky) or (sang ky)) lang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh doi cua triet*.