Perhaps you should try some spelling variations:
"effects sampling algorithm" » "effects mining algorithm" (Expand Search), "effects modeling algorithm" (Expand Search), "effects along algorithm" (Expand Search), "effects arising algorithm" (Expand Search)
"elements novel algorithm" » "elements forest algorithm" (Expand Search), "elements over algorithm" (Expand Search), "element model algorithm" (Expand Search), "elements involved algorithm" (Expand Search)
"element te algorithm" » "element tide algorithm" (Expand Search), "element new algorithm" (Expand Search), "element de algorithms" (Expand Search), "element _ algorithm" (Expand Search), "element data algorithm" (Expand Search), "element mesh algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("element te algorithm") OR ("elements novel algorithm"))) OR ("effects sampling algorithm"))~.
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• Removing quotes may allow a broader search: (((( element te algorithm ) OR ( elements novel algorithm ))) OR ( effects sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element te algorithm") OR ("elements novel algorithm"))) OR ("effects sampling algorithm"))*.