Perhaps you should try some spelling variations:
"levels fusion algorithm" » "levels auction algorithm" (Expand Search), "levels cosine algorithm" (Expand Search), "level fusion algorithm" (Expand Search)
"element making algorithm" » "element cosine algorithm" (Expand Search), "elements making 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.

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

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