Perhaps you should try some spelling variations:
"implementing context algorithm" » "implementation context algorithm" (Expand Search), "implementing change algorithm" (Expand Search), "implementing control algorithm" (Expand Search), "implementing monte algorithm" (Expand Search), "implementing consistent 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 ml algorithms" » "element _ algorithms" (Expand Search), "element g algorithms" (Expand Search), "element te algorithms" (Expand Search)

Try widening your search to All Fields.

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