Perhaps you should try some spelling variations:
"process models algorithm" » "process mould algorithm" (Expand Search), "process deer algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"elements cc3d algorithm" » "elements rd 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: (((("elements cc3d algorithm") OR ("process models algorithm"))) OR ("neural coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements cc3d algorithm\") OR (\"process models algorithm\"))) OR (\"neural coding algorithm\"))".
• Removing quotes may allow a broader search: (((( elements cc3d algorithm ) OR ( process models algorithm ))) OR ( neural coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements cc3d algorithm") OR ("process models algorithm"))) OR ("neural coding algorithm"))*.