Perhaps you should try some spelling variations:
"plant processing algorithm" » "post processing algorithm" (Expand Search), "image processing algorithm" (Expand Search), "data processing algorithm" (Expand Search)
"wood processing algorithm" » "food processing algorithm" (Expand Search)
"present data algorithm" » "present data algorithms" (Expand Search), "present update algorithm" (Expand Search), "present each algorithm" (Expand Search), "patient data algorithm" (Expand Search)

Try widening your search to All Fields.

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