Perhaps you should try some spelling variations:
summa » summar (Expand Search), suma (Expand Search), samma (Expand Search)
summary » summarry (Expand Search), sumary (Expand Search), sammary (Expand Search)
semmar » summar (Expand Search)
sumar » skumar (Expand Search), summar (Expand Search), kumar (Expand Search)
sumarry » skumarry (Expand Search), summarry (Expand Search), kumarry (Expand Search)
ssumary » sskumary (Expand Search), ssummary (Expand Search), skumary (Expand Search), lsummary (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "karachi : (summa OR (summary OR ((semmar OR sumar) OR (sumarry OR ssumary))))~".
• Adding a wildcard symbol may retrieve word variants: karachi : (summa OR (summary OR ((semmar OR sumar) OR (sumarry OR ssumary))))*.