Perhaps you should try some spelling variations:
"element mining algorithm" » "element cosine algorithm" (Expand Search), "elements mining algorithm" (Expand Search)
"fragment based algorithm" » "agent based algorithm" (Expand Search), "gradient based 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: (((("fragment based algorithm") OR ("element data algorithm"))) OR ("element mining algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"fragment based algorithm\") OR (\"element data algorithm\"))) OR (\"element mining algorithm\"))".
• Removing quotes may allow a broader search: (((( fragment based algorithm ) OR ( element data algorithm ))) OR ( element mining algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("fragment based algorithm") OR ("element data algorithm"))) OR ("element mining algorithm"))*.