Perhaps you should try some spelling variations:
"element mining algorithm" » "element finding algorithm" (Expand Search), "element making algorithm" (Expand Search), "element training algorithms" (Expand Search), "element mapping algorithm" (Expand Search), "element bonding algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"element anbs algorithm" » "element means algorithm" (Expand Search), "element new algorithm" (Expand Search), "element cnn algorithm" (Expand Search), "element fbe 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 anbs algorithm") OR ((("element mining algorithm") OR ("level coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element anbs algorithm\") OR (((\"element mining algorithm\") OR (\"level coding algorithm\"))))".
• Removing quotes may allow a broader search: (( element anbs algorithm ) OR ((( element mining algorithm ) OR ( level coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element anbs algorithm") OR ((("element mining algorithm") OR ("level coding algorithm"))))*.