Perhaps you should try some spelling variations:
"cloud computing algorithm" » "cloud scheduling algorithm" (Expand Search)
"element four algorithms" » "elements four algorithms" (Expand Search), "element our algorithms" (Expand Search)
"element method algorithms" » "elements method algorithms" (Expand Search), "element methods 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 computing algorithm") OR ((("element four algorithms") OR ("element method algorithms"))))~.
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• Removing quotes may allow a broader search: (( cloud computing algorithm ) OR ((( element four algorithms ) OR ( element method algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("cloud computing algorithm") OR ((("element four algorithms") OR ("element method algorithms"))))*.