Perhaps you should try some spelling variations:
computation contributions » competition contribution, population contributions, communication contributions
contributions a » contributions _, contribution _, contributions royal
a dimensional » _ dimensional, 3 dimensional, 2 dimensional
array device » airway devices, array design, array drive
array drift » spray drift, array drive, array driven
array pixel » array pixels

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

• Performing a fuzzy search may retrieve terms with similar spellings: computation contributions a dimensional ((((array drift) or (array device))) or (array pixel))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: computation contributions a dimensional ((((array drift) OR (array device))) OR (array pixel)).
• Adding a wildcard symbol may retrieve word variants: computation contributions a dimensional ((((array drift) or (array device))) or (array pixel))*.