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