Perhaps you should try some spelling variations:
representation germany » representation learning, representation series
based representation » based presentation, self representation, data representation
germany studies » german studies, germany studied, germany series
income part » income per
come part » crime part, time part, case part
year » years

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

• If you are trying to use Boolean operators, they must be ALL CAPS: commercial ((one year) OR (((income part) OR (come part)))) based representation germany studies.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "commercial ((one year) or (((income part) OR (come part)))) based representation germany studies.~".
• Adding a wildcard symbol may retrieve word variants: commercial ((one year) or (((income part) OR (come part)))) based representation germany studies.*.