Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
cac tu » cac thu, cach tu, cac du
va dan » ca dan, va dao, va dau
dan de » dan den, dang de, van de
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky tang ma hoa. ((hieu qua) or (lieu va)) cac tu va dan de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky tang ma hoa. ((hieu qua) OR (lieu va)) cac tu va dan de cua triet.
• Adding a wildcard symbol may retrieve word variants: so sanh ky tang ma hoa. ((hieu qua) or (lieu va)) cac tu va dan de cua triet*.