Perhaps you should try some spelling variations:
"improvements pacing algorithms" » "improvements using algorithms" (Expand Search), "improvement among algorithms" (Expand Search), "improvements can algorithms" (Expand Search), "improvements tracking algorithms" (Expand Search), "improvements planning algorithms" (Expand Search), "improvements making algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"element rl algorithm" » "element rl algorithms" (Expand Search), "element rf algorithm" (Expand Search), "element ml algorithms" (Expand Search), "element ore algorithm" (Expand Search), "element ree algorithm" (Expand Search), "element _ algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("improvements pacing algorithms") OR ((("element rl algorithm") OR ("neural coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"improvements pacing algorithms\") OR (((\"element rl algorithm\") OR (\"neural coding algorithm\"))))".
• Removing quotes may allow a broader search: (( improvements pacing algorithms ) OR ((( element rl algorithm ) OR ( neural coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("improvements pacing algorithms") OR ((("element rl algorithm") OR ("neural coding algorithm"))))*.