Sql server Issue in Dedicated Server

We have licensed version of Sqlserver software in Dedicated server.In that we are maintaining Database for my application
In Database  one table has 3,33,000 records ,when we are  retrieving at first time of execution it should fetch entire records at a time(3,33,000)
But it  fetches  1,80,000 records .For next text time execution it will show 1,90,000 ,and for next time execution it increases like this happens.
finally i will get the result  after many times of execution.

For this i have done surfing on google by implementing below options.
1.By increasing command time out in Sqlserver
References:
1)http://www.hosting.com/support/sql/configure-query-timeout-period-in-sql-management-studio
2)http://stackoverflow.com/questions/1137190/changing-the-commandtimeout-in-sql-management-studio

2.By increasing command time out in functionality wise.
set command timeout="50000" in web.config file

i have used above options,but not yet resolved .

Can you please give an idea to resolve this issue.