Perhaps you should try some spelling variations:
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"complement cscap algorithm" » "complement cascade algorithm" (Expand Search), "complement 5a algorithm" (Expand Search), "complement c3 algorithm" (Expand Search), "complement cc3d algorithm" (Expand Search), "complement ipca algorithm" (Expand Search), "complement custom algorithm" (Expand Search)
"level using algorithm" » "level using algorithms" (Expand Search), "level routing algorithm" (Expand Search), "level fusion algorithm" (Expand Search), "levels using algorithm" (Expand Search)

Try widening your search to All Fields.

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