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