Perhaps you should try some spelling variations:
"element consistent algorithm" » "element component algorithm" (Expand Search), "element cosine algorithm" (Expand Search), "element content algorithm" (Expand Search), "element contents 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)
"elements rf algorithm" » "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements art algorithms" (Expand Search), "elements ree algorithm" (Expand Search), "elements res 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 consistent algorithm") OR ("elements rf algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element consistent algorithm\") OR (\"elements rf algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( element consistent algorithm ) OR ( elements rf algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element consistent algorithm") OR ("elements rf algorithm"))) OR ("level coding algorithm"))*.