Perhaps you should try some spelling variations:
"element making algorithm" » "element cosine algorithm" (Expand Search), "elements making algorithm" (Expand Search)
"fragment based algorithm" » "agent based algorithm" (Expand Search), "gradient based algorithm" (Expand Search)
"element cnn algorithm" » "element rd algorithm" (Expand Search), "element colony algorithm" (Expand Search), "element cosine algorithm" (Expand Search), "elements cnn 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 cnn algorithm") OR ((("element making algorithm") OR ("fragment based algorithm"))))~.
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• Removing quotes may allow a broader search: (( element cnn algorithm ) OR ((( element making algorithm ) OR ( fragment based algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element cnn algorithm") OR ((("element making algorithm") OR ("fragment based algorithm"))))*.