Perhaps you should try some spelling variations:
aggregate factors » aggregate factor, aggregates factories, aggregate functions
aggregate matters » aggregate pattern, aggregated matter, aggregate centers
factors income » factor income, factor incomes, factors outcome
matters income » patterns income, farmers income, matters some
aggregate fact » aggregate factor, aggregate impact, aggregate data
fact income » act income, factor income, fact become

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: (((( aggregate factors income distribution ) OR ( aggregate matters income distribution ))) OR ( aggregate fact income distribution )).
• Adding a wildcard symbol may retrieve word variants: (((( aggregate factors income distribution ) or ( aggregate matters income distribution ))) or ( aggregate fact income distribution ))*.