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