Perhaps you should try some spelling variations:
"effects sampling algorithm" » "effects making algorithm" (Expand Search), "effects modeling algorithm" (Expand Search), "effects matching algorithm" (Expand Search), "effects along algorithm" (Expand Search), "effects arising algorithm" (Expand Search)
"effects mining algorithm" » "effects finding algorithm" (Expand Search), "effects making algorithm" (Expand Search), "effects training algorithms" (Expand Search), "effects arising algorithm" (Expand Search), "effects using algorithm" (Expand Search), "effects main algorithm" (Expand Search)
"present data algorithm" » "present data algorithms" (Expand Search), "present update algorithm" (Expand Search), "present atlas algorithm" (Expand Search), "presence data algorithm" (Expand Search), "present day algorithm" (Expand Search), "recent data algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("present data algorithm") OR ((("effects sampling algorithm") OR ("effects mining algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"present data algorithm\") OR (((\"effects sampling algorithm\") OR (\"effects mining algorithm\"))))".
• Removing quotes may allow a broader search: (( present data algorithm ) OR ((( effects sampling algorithm ) OR ( effects mining algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("present data algorithm") OR ((("effects sampling algorithm") OR ("effects mining algorithm"))))*.