Perhaps you should try some spelling variations:
astronomy surveying » astronomy during
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
images positional » images conditional, images positioning, leagues positional
optical astronomy » nautical astronomy, spherical astronomy
patrick images » patrick chames, patrol images, backtrack images
patrick sizes » patrick stiles, patrick suppes, patrick simon
sizes optical » states optical, drives optical, fibres optical

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: (( the patrick images positional astronomy survives ) OR ( the patrick sizes optical astronomy surveying )).
• Adding a wildcard symbol may retrieve word variants: (( the patrick images positional astronomy survives ) or ( the patrick sizes optical astronomy surveying ))*.