Perhaps you should try some spelling variations:
"post processing algorithm" » "post modeling algorithm" (Expand Search), "post routing algorithm" (Expand Search), "post tracking algorithm" (Expand Search), "waste processing algorithm" (Expand Search), "wood processing algorithm" (Expand Search), "food processing algorithm" (Expand Search)
"element method algorithms" » "element two algorithms" (Expand Search), "element both algorithms" (Expand Search), "element other algorithms" (Expand Search)
"element art algorithms" » "element ml algorithms" (Expand Search), "element _ algorithms" (Expand Search), "element based algorithms" (Expand Search), "element ore algorithms" (Expand Search), "element data 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 method algorithms") OR ("element art algorithms"))) OR ("post processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element method algorithms\") OR (\"element art algorithms\"))) OR (\"post processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element method algorithms ) OR ( element art algorithms ))) OR ( post processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element method algorithms") OR ("element art algorithms"))) OR ("post processing algorithm"))*.