Perhaps you should try some spelling variations:
"pregel resolution algorithms" » "pregel evolution algorithms" (Expand Search), "pregel recognition algorithms" (Expand Search), "pregel evolutionary algorithms" (Expand Search), "level resolution algorithms" (Expand Search), "pregel solutions algorithms" (Expand Search), "pixel resolution algorithms" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"relevant data algorithm" » "relevant data algorithms" (Expand Search), "relevant update algorithm" (Expand Search), "relevant atlas algorithm" (Expand Search)

Try widening your search to All Fields.

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