Talvez debería tentar con algunhas variantes ortográficas:
position detection » pollution detection, motion detection, collision detection
detection methods » detection method, extraction methods, collection methods
methods robert » methods robust, methods recent, methods report
array forming » array format, array arcing, array fermi
array sharing » arrays bearing, array imaging, way sharing
array string » array strong, arrays strings, array using

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: position detection methods robert ((((array string) OR (array forming))) OR (array sharing))~.
• Adding a wildcard symbol may retrieve word variants: position detection methods robert ((((array string) or (array forming))) or (array sharing))*.