Perhaps you should try some spelling variations:
"query modeling algorithm" » "query scheduling algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"element rast algorithm" » "element jaya algorithm" (Expand Search), "element rd algorithm" (Expand Search), "elements rast 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 rast algorithm") OR ((("query modeling algorithm") OR ("element method algorithm"))))~.
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• Removing quotes may allow a broader search: (( element rast algorithm ) OR ((( query modeling algorithm ) OR ( element method algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element rast algorithm") OR ((("query modeling algorithm") OR ("element method algorithm"))))*.