Search Issues — Only checks through title of post

I am using the Search Reloaded Plugin, but have noticed that when I search for a word — if it is located in the title of the post, then only it will be found. If the word is not in the title, there will be return of nothing.

Why is that and how can that be fixed?

This is to be noted that there was no search.php in my theme, hence I had to create one. The only thing that its calling in that pho is sem_search_results from the Search Reloaded Plugin.

Any suggestions on how to make the search better so that it will check through the post, not just the title?

Thanks!