Perhaps you should try some spelling variations:
"query processing algorithm" » "query processing algorithms" (Expand Search), "text processing algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search)
"element based algorithms" » "event based algorithms" (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: "((((\"element based algorithms\") OR (\"element mesh algorithm\"))) OR (\"query processing algorithm\"))~".
• Removing quotes may allow a broader search: (((( element based algorithms ) OR ( element mesh algorithm ))) OR ( query processing algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (((("element based algorithms") OR ("element mesh algorithm"))) OR ("query processing algorithm"))*.