Perhaps you should try some spelling variations:
summa » suma (Expand Search), samma (Expand Search), sukma (Expand Search)
summar » sumar (Expand Search), sammar (Expand Search), sukmar (Expand Search), summer (Expand Search), lsummary (Expand Search)
summary » sumary (Expand Search), sammary (Expand Search), sukmary (Expand Search), summery (Expand Search), lsummaryy (Expand Search)
sama » same (Expand Search), sam (Expand Search)
sman » osman (Expand Search), usman (Expand Search), asman (Expand Search)
sukmary » lsummary (Expand Search), sukumara (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: karachi : (summa OR ((sama OR sman) OR (summar OR (summary OR sukmary))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: karachi : (summa OR ((sama OR sman) OR (summar OR (summary OR sukmary)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "karachi : (summa OR ((sama OR sman) OR (summar OR (summary OR sukmary))))".
• Adding a wildcard symbol may retrieve word variants: karachi : (summa OR ((sama OR sman) OR (summar OR (summary OR sukmary))))*.