Perhaps you should try some spelling variations:
"improvements based algorithm" » "improvements also algorithm" (Expand Search), "improvements increased algorithm" (Expand Search), "improvements observed algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"elements em algorithm" » "elements new algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "elements res algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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