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)
"elements search algorithm" » "elements research 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 ("elements search algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implement custom algorithm\") OR (\"elements search algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( implement custom algorithm ) OR ( elements search algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("implement custom algorithm") OR ("elements search algorithm"))) OR ("level coding algorithm"))*.