Perhaps you should try some spelling variations:
"data routing algorithm" » "data cosine algorithm" (Expand Search), "data using algorithm" (Expand Search)
"element each algorithm" » "element search algorithm" (Expand Search), "element jaya algorithm" (Expand Search), "elements each algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("data routing algorithm") OR ((("element each algorithm") OR ("element mesh algorithm"))))~.
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• Removing quotes may allow a broader search: (( data routing algorithm ) OR ((( element each algorithm ) OR ( element mesh algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data routing algorithm") OR ((("element each algorithm") OR ("element mesh algorithm"))))*.