Perhaps you should try some spelling variations:
"fold processing algorithm" » "food processing algorithm" (Expand Search), "wood processing algorithm" (Expand Search), "post processing algorithm" (Expand Search)
"element rf algorithm" » "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element art algorithms" (Expand Search), "element ree algorithm" (Expand Search), "element ore algorithm" (Expand Search)
"element em algorithm" » "element new algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element _ algorithms" (Expand Search), "element ree 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: (("fold processing algorithm") OR ((("element rf algorithm") OR ("element em algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"fold processing algorithm\") OR (((\"element rf algorithm\") OR (\"element em algorithm\"))))".
• Removing quotes may allow a broader search: (( fold processing algorithm ) OR ((( element rf algorithm ) OR ( element em algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("fold processing algorithm") OR ((("element rf algorithm") OR ("element em algorithm"))))*.