Perhaps you should try some spelling variations:
"current modeling algorithm" » "current making algorithm" (Expand Search), "current model algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "current smoking algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural finding algorithm" (Expand Search), "neural routing algorithm" (Expand Search)
"present tab algorithm" » "present b algorithm" (Expand Search), "present td3 algorithm" (Expand Search), "present abs algorithm" (Expand Search), "present day algorithm" (Expand Search), "present data algorithm" (Expand Search)

Try widening your search to All Fields.

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