Perhaps you should try some spelling variations:
"image processing algorithm" » "image processing algorithms" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"element mean algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mean algorithm" (Expand Search)

Try widening your search to All Fields.

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