Perhaps you should try some spelling variations:
competing patterns » computing patterns, computing pattern, voting patterns
wealth competing » wealth concerning, health competence, wealth creating
combing patterns » combine patterns, combining patterns, coding patterns
wealth combing » wealth coatings, wealth common, wealth holding
oecd wealth » oecd health, oecd welt, old wealth

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: (( oecd wealth competing patterns ) OR ( oecd wealth combing patterns )).
• Adding a wildcard symbol may retrieve word variants: (( oecd wealth competing patterns ) or ( oecd wealth combing patterns ))*.