Perhaps you should try some spelling variations:
"improvements can algorithm" » "improvement _ algorithm" (Expand Search), "improvements carlo algorithm" (Expand Search), "improvements jaya algorithm" (Expand Search), "improvements rd algorithm" (Expand Search)
"data using algorithms" » "data cosine algorithm" (Expand Search)
"relevant update algorithm" » "relevant updated 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: (((("improvements can algorithm") OR ("relevant update algorithm"))) OR ("data using algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"improvements can algorithm\") OR (\"relevant update algorithm\"))) OR (\"data using algorithms\"))".
• Removing quotes may allow a broader search: (((( improvements can algorithm ) OR ( relevant update algorithm ))) OR ( data using algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("improvements can algorithm") OR ("relevant update algorithm"))) OR ("data using algorithms"))*.