Perhaps you should try some spelling variations:
"implement custom algorithm" » "implement control algorithm" (Expand Search), "implement auction algorithm" (Expand Search), "implement cosine algorithm" (Expand Search), "implemented custom algorithm" (Expand Search), "implementing custom algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level colony algorithm" (Expand Search), "level scheduling algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data 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: (((("implement custom algorithm") OR ("element data algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implement custom algorithm\") OR (\"element data algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( implement custom algorithm ) OR ( element data algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("implement custom algorithm") OR ("element data algorithm"))) OR ("level coding algorithm"))*.