Perhaps you should try some spelling variations:
introduction development » introduction developing, reproductive development, product development
development heated » development related, development head, development heat
heated extending » defined extending, updates extending, data extending
array paving » array planning, array imaging, array probing
array string » array strong, arrays strings, array sharing

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: "introduction development heated extending ((array paving) OR (((array format) OR (array string))))~".
• Adding a wildcard symbol may retrieve word variants: introduction development heated extending ((array paving) OR (((array format) OR (array string))))*.