Perhaps you should try some spelling variations:
ones studenten » eines studenten, des studenten, von studenten
3 filosofiche » e filosofiche, ve filosoficke, e filosofica
filosofiche a » filosofiche e, filosofiche lo, filosofico a
a literatura » la literatura, a literature, y literatura
tested ones » test ones, tested new, tested steps
studenten 3 » studenten _, studenten 5, studenten 4