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 ices algorithm" » "elements ii algorithm" (Expand Search), "elements new algorithm" (Expand Search), "elements best algorithm" (Expand Search), "elements mges algorithm" (Expand Search), "elements uce algorithm" (Expand Search), "elements fe algorithm" (Expand Search)
"elements res algorithm" » "elements best algorithm" (Expand Search), "elements rast algorithm" (Expand Search), "elements new algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "elements mges algorithm" (Expand Search), "elements fe algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("elements ices algorithm") OR ("elements res algorithm"))) OR ("query processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements ices algorithm\") OR (\"elements res algorithm\"))) OR (\"query processing algorithm\"))".
• Removing quotes may allow a broader search: (((( elements ices algorithm ) OR ( elements res algorithm ))) OR ( query processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements ices algorithm") OR ("elements res algorithm"))) OR ("query processing algorithm"))*.