Perhaps you should try some spelling variations:
"element centrality algorithm" » "element control algorithm" (Expand Search), "element generation algorithm" (Expand Search), "element density algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"data using algorithm" » "data using algorithms" (Expand Search), "data routing algorithm" (Expand Search), "data fusion algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("data using algorithm") OR ((("element method algorithm") OR ("element centrality algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data using algorithm\") OR (((\"element method algorithm\") OR (\"element centrality algorithm\"))))".
• Removing quotes may allow a broader search: (( data using algorithm ) OR ((( element method algorithm ) OR ( element centrality algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data using algorithm") OR ((("element method algorithm") OR ("element centrality algorithm"))))*.