Perhaps you should try some spelling variations:
"element method algorithms" » "element two algorithms" (Expand Search), "element both algorithms" (Expand Search), "element other algorithms" (Expand Search)
"post routing algorithm" » "post modeling algorithm" (Expand Search), "post finding algorithm" (Expand Search), "post making algorithm" (Expand Search), "post docking algorithm" (Expand Search), "post dosing algorithm" (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 method algorithms") OR ("element tree algorithms"))) OR ("post routing algorithm"))~.
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• Removing quotes may allow a broader search: (((( element method algorithms ) OR ( element tree algorithms ))) OR ( post routing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element method algorithms") OR ("element tree algorithms"))) OR ("post routing algorithm"))*.