Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh te » thanh ve, thanh de, thanh le
va thanh » gia thanh, ban thanh, va tinh
cac thuc » cach thuc, cac thu, can thuc
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang xa » lang xa, nang ma, mang xa
te cua » tue cua, le cua, de 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 sach) or (so sanh)) y ((nang xa) OR (nang x)) hoi. hieu va cac thuc va thanh te cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) y ((nang xa) OR (nang x)) hoi. hieu va cac thuc va thanh te cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) y ((nang xa) OR (nang x)) hoi. hieu va cac thuc va thanh te cua triet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) y ((nang xa) OR (nang x)) hoi. hieu va cac thuc va thanh te cua triet*.