Perhaps you should try some spelling variations:
"complement complex algorithm" » "compliment compliment algorithm" (Expand Search), "complement cosine algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"elements box algorithm" » "elements rd algorithm" (Expand Search), "elements _ algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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