Perhaps you should try some spelling variations:
"implement leiden algorithm" » "implement deer algorithm" (Expand Search), "implemented leiden algorithm" (Expand Search), "implementing leiden algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"element tree algorithms" » "elements tree algorithms" (Expand Search), "element three algorithms" (Expand Search), "element free algorithms" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("implement leiden algorithm") OR ("element tree algorithms"))) OR ("neural coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implement leiden algorithm\") OR (\"element tree algorithms\"))) OR (\"neural coding algorithm\"))*".
• Removing quotes may allow a broader search: (((( implement leiden algorithm ) OR ( element tree algorithms ))) OR ( neural coding algorithm ))*.