Perhaps you should try some spelling variations:
sociali studies » social studies, sociale studies, societal studies
filosofia igel » filosofia del, filosofia de, filosofia e
igel literatur » teil literatur, l literatur, wahl literatur
texto sociali » texto social, text social, texts social
lia filosofia » la filosofia, alla filosofia, fija filosofia
studies lia » studies lca, studies li, studies lit