Perhaps you should try some spelling variations:
"select centrality algorithm" » "select control algorithm" (Expand Search), "select generation algorithm" (Expand Search), "select density algorithm" (Expand Search), "selected centrality 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: (((("select centrality algorithm") OR ("element method algorithm"))) OR ("data using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"select centrality algorithm\") OR (\"element method algorithm\"))) OR (\"data using algorithm\"))".
• Removing quotes may allow a broader search: (((( select centrality algorithm ) OR ( element method algorithm ))) OR ( data using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("select centrality algorithm") OR ("element method algorithm"))) OR ("data using algorithm"))*.