Perhaps you should try some spelling variations:
"tested using algorithms" » "tested cosine algorithm" (Expand Search), "system using algorithms" (Expand Search)
"element forest algorithm" » "element firefly algorithm" (Expand Search), "elements forest algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("tested using algorithms") OR ((("element forest algorithm") OR ("neural coding algorithm"))))~.
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• Removing quotes may allow a broader search: (( tested using algorithms ) OR ((( element forest algorithm ) OR ( neural coding algorithm )))).
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