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)
"present data algorithm" » "present data algorithms" (Expand Search), "present update algorithm" (Expand Search), "present atlas algorithm" (Expand Search), "presence data algorithm" (Expand Search), "present day algorithm" (Expand Search), "recent data algorithm" (Expand Search)
"element based algorithm" » "engagement based algorithm" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("query processing algorithm") OR ((("present data algorithm") OR ("element based algorithm"))))~.
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• Removing quotes may allow a broader search: (( query processing algorithm ) OR ((( present data algorithm ) OR ( element based algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("query processing algorithm") OR ((("present data algorithm") OR ("element based algorithm"))))*.