Perhaps you should try some spelling variations:
"post boosting algorithm" » "post cosine algorithm" (Expand Search), "most boosting algorithm" (Expand Search), "cost boosting algorithm" (Expand Search)
"cox modeling algorithm" » "cox scheduling algorithm" (Expand Search), "_ modeling algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)

Try widening your search to All Fields.

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