Perhaps you should try some spelling variations:
sanh tay » canh tay, san tay, thanh tay
tay lang » tai lang, tay tang, tay quang
va triet » va trien, ve triet, cua triet
cao thuc » cao thuoc, bao thuc, can thuc
so sanh » do sanh
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
thuc va » thuc vat, thuc dan, thuc day
qua cao » qua cac, qua ca, qua cai
lang xa » lang ha, dang xay, lang van
thiet » thieu

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 tay lang xa hoi. hieu qua cao thuc va ((hang di) OR (hang vi)) ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh tay lang xa hoi. hieu qua cao thuc va ((hang di) OR (hang vi)) ((va triet) OR (va thiet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh tay lang xa hoi. hieu qua cao thuc va ((hang di) OR (hang vi)) ((va triet) or (va thiet))*".