Perhaps you should try some spelling variations:
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level routing algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"element finding algorithm" » "element bonding algorithm" (Expand Search), "recent finding algorithm" (Expand Search), "present findings algorithm" (Expand Search)
"element ore algorithms" » "element tree algorithms" (Expand Search), "element art algorithms" (Expand Search), "element rl algorithms" (Expand Search), "element te algorithms" (Expand Search), "element fbe algorithms" (Expand Search), "element ree algorithms" (Expand Search)

Try widening your search to All Fields.

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