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 mesh algorithms" » "element best algorithms" (Expand Search), "element ml algorithms" (Expand Search), "element best algorithm" (Expand Search), "element method algorithms" (Expand Search), "elements mges algorithms" (Expand Search), "element te algorithms" (Expand Search)
"element tree algorithms" » "element three algorithms" (Expand Search), "element art algorithms" (Expand Search), "element two algorithms" (Expand Search), "element ree algorithms" (Expand Search), "element te algorithms" (Expand Search), "element ore 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 mesh algorithms") OR ("element tree algorithms"))) OR ("post processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element mesh algorithms\") OR (\"element tree algorithms\"))) OR (\"post processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element mesh algorithms ) OR ( element tree algorithms ))) OR ( post processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element mesh algorithms") OR ("element tree algorithms"))) OR ("post processing algorithm"))*.