Perhaps you should try some spelling variations:
"system modeling algorithm" » "system making algorithm" (Expand Search), "system model algorithm" (Expand Search), "system models algorithm" (Expand Search)
"element mining algorithm" » "element finding algorithm" (Expand Search), "element making algorithm" (Expand Search), "element training algorithms" (Expand Search), "element mapping algorithm" (Expand Search), "element bonding algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural finding algorithm" (Expand Search), "neural routing algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("system modeling algorithm") OR ((("element mining algorithm") OR ("neural coding algorithm"))))~.
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• Removing quotes may allow a broader search: (( system modeling algorithm ) OR ((( element mining algorithm ) OR ( neural coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("system modeling algorithm") OR ((("element mining algorithm") OR ("neural coding algorithm"))))*.