Perhaps you should try some spelling variations:
"cloud modeling algorithm" » "cloud scheduling algorithm" (Expand Search)
"settlement data algorithm" » "settlement jaya algorithm" (Expand Search), "settlement deer algorithm" (Expand Search)
"element tree algorithms" » "elements tree algorithms" (Expand Search), "element three algorithms" (Expand Search), "element free algorithms" (Expand Search)

Try widening your search to All Fields.

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