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)
"element meshm algorithms" » "element mdem algorithms" (Expand Search), "element best algorithms" (Expand Search), "element mcem algorithms" (Expand Search), "element mesh algorithms" (Expand Search), "element method algorithms" (Expand Search)
"element te algorithm" » "element tide algorithm" (Expand Search), "element new algorithm" (Expand Search), "element de algorithms" (Expand Search), "element _ algorithm" (Expand Search), "element data algorithm" (Expand Search), "element mesh 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 ((("element te algorithm") OR ("element meshm algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"plant processing algorithm\") OR (((\"element te algorithm\") OR (\"element meshm algorithms\"))))".
• Removing quotes may allow a broader search: (( plant processing algorithm ) OR ((( element te algorithm ) OR ( element meshm algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("plant processing algorithm") OR ((("element te algorithm") OR ("element meshm algorithms"))))*.