Perhaps you should try some spelling variations:
"waste processing algorithm" » "data processing algorithm" (Expand Search), "image processing algorithm" (Expand Search), "wood processing algorithm" (Expand Search)
"present data algorithms" » "present art algorithms" (Expand Search), "present all algorithms" (Expand Search), "present de algorithms" (Expand Search), "present update algorithms" (Expand Search), "present each algorithms" (Expand Search), "present ddpg algorithms" (Expand Search), "patient data algorithms" (Expand Search)
"element data algorithm" » "element update algorithm" (Expand Search), "element each algorithm" (Expand Search), "element ddpg algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search), "recent 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: (((("element data algorithm") OR ("present data algorithms"))) OR ("waste processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element data algorithm\") OR (\"present data algorithms\"))) OR (\"waste processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( present data algorithms ))) OR ( waste processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("present data algorithms"))) OR ("waste processing algorithm"))*.