Perhaps you should try some spelling variations:
development breadmaking » development reading, development benchmarking, development making
development breeding » developments breeding, development reading, development branding
food economic » food economics, good economics, food economy

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "food economic ((development breadmaking) OR (development breeding)) papers*".