Perhaps you should try some spelling variations:
"receptor binding algorithm" » "receptor finding algorithm" (Expand Search), "receptor finding algorithms" (Expand Search), "receptor mining algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"elements pso algorithm" » "elements lasso algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements upon 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: (("elements pso algorithm") OR ((("receptor binding algorithm") OR ("neural coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elements pso algorithm\") OR (((\"receptor binding algorithm\") OR (\"neural coding algorithm\"))))".
• Removing quotes may allow a broader search: (( elements pso algorithm ) OR ((( receptor binding algorithm ) OR ( neural coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("elements pso algorithm") OR ((("receptor binding algorithm") OR ("neural coding algorithm"))))*.