Perhaps you should try some spelling variations:
"light processing algorithm" » "light modeling algorithm" (Expand Search), "light routing algorithm" (Expand Search), "light tracking algorithm" (Expand Search), "signal processing algorithm" (Expand Search), "time processing algorithm" (Expand Search)
"element data algorithms" » "element art algorithms" (Expand Search), "element all algorithms" (Expand Search), "element both algorithms" (Expand Search), "settlement data algorithms" (Expand Search), "relevant data algorithms" (Expand Search), "movement data algorithms" (Expand Search)
"element mesh algorithm" » "element best algorithm" (Expand Search), "element mean algorithm" (Expand Search), "element means algorithm" (Expand Search), "element method algorithm" (Expand Search), "elements mges algorithm" (Expand Search), "element te 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 mesh algorithm") OR ("element data algorithms"))) OR ("light processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element mesh algorithm\") OR (\"element data algorithms\"))) OR (\"light processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element mesh algorithm ) OR ( element data algorithms ))) OR ( light processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element mesh algorithm") OR ("element data algorithms"))) OR ("light processing algorithm"))*.