Perhaps you should try some spelling variations:
"very large telescopes" » "very large telescope", "very radio telescopes"
"very space telescopes" » "very space telescope", "very scarce telescopes", "very sparse telescopes", "key space telescopes"
"query space telescopes" » "query space telescope", "query spaces telescopes", "queer space telescopes", "query pack telescopes"

Try widening your search to All Fields.

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: (("very large telescopes") OR ((("very space telescopes") OR ("query space telescopes")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"very large telescopes\") or (((\"very space telescopes\") OR (\"query space telescopes\"))))".
• Removing quotes may allow a broader search: (( very large telescopes ) or ((( very space telescopes ) OR ( query space telescopes )))).
• Adding a wildcard symbol may retrieve word variants: (("very large telescopes") or ((("very space telescopes") OR ("query space telescopes"))))*.