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)
"elements based algorithms" » "elements based algorithm" (Expand Search), "experiments based algorithms" (Expand Search), "elements related algorithms" (Expand Search)
"element mesh algorithm" » "element best algorithm" (Expand Search), "element mean algorithm" (Expand Search), "element means algorithm" (Expand Search), "element method algorithm" (Expand Search), "elements mges algorithm" (Expand Search), "element te algorithm" (Expand Search)

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