Perhaps you should try some spelling variations:
del litterature » de litterature, des litteratures, et litterature
feature scale » feature space, feature shape, feature scaling
da filosofia » la filosofia, di filosofia, a filosofia
study da » study das, study dca, study d

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

• Adding a wildcard symbol may retrieve word variants: feature scale study da filosofia del litterature*.