Perhaps you should try some spelling variations:
"query processing algorithm" » "query modeling algorithm" (Expand Search), "query routing algorithm" (Expand Search), "query tracking algorithm" (Expand Search), "pre processing algorithm" (Expand Search)
"elements method algorithm" » "elements network algorithm" (Expand Search), "elements means algorithm" (Expand Search), "elements mean algorithm" (Expand Search), "element method algorithm" (Expand Search)
"recent data algorithms" » "recent art algorithms" (Expand Search), "recent all algorithms" (Expand Search), "recent both algorithms" (Expand Search), "relevant data algorithms" (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: (((("elements method algorithm") OR ("recent data algorithms"))) OR ("query processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements method algorithm\") OR (\"recent data algorithms\"))) OR (\"query processing algorithm\"))".
• Removing quotes may allow a broader search: (((( elements method algorithm ) OR ( recent data algorithms ))) OR ( query processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements method algorithm") OR ("recent data algorithms"))) OR ("query processing algorithm"))*.