Perhaps you should try some spelling variations:
"end processing algorithm" » "end routing algorithm" (Expand Search), "end tracking algorithm" (Expand Search), "end boosting algorithm" (Expand Search), "rna processing algorithm" (Expand Search), "wood processing algorithm" (Expand Search), "food processing algorithm" (Expand Search)
"post modeling algorithm" » "post making algorithm" (Expand Search), "best modeling algorithm" (Expand Search), "forest modeling algorithm" (Expand Search), "joint modeling algorithm" (Expand Search)
"present data algorithms" » "present art algorithms" (Expand Search), "present all algorithms" (Expand Search), "present both algorithms" (Expand Search), "presence data algorithms" (Expand Search), "present day algorithms" (Expand Search), "recent data algorithms" (Expand Search)

Try widening your search to All Fields.

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