Perhaps you should try some spelling variations:
"complement fusion algorithm" » "complement auction algorithm" (Expand Search), "complement cosine algorithm" (Expand Search), "implement fusion algorithm" (Expand Search), "complementary fusion algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"element mesh algorithms" » "elements mesh algorithms" (Expand Search)

Try widening your search to All Fields.

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