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