Perhaps you should try some spelling variations:
e litterature » et litterature, de litterature, en litterature
oral studium » oral sodium, frau studium, duale studium
am filosofia » a filosofia, em filosofia, la filosofia
filosofia e » filosofia de, filosofia del
studium am » studium im, studium als, studium das
test oral » test oracle, test orn, test oracles