Perhaps you should try some spelling variations:
"based learning algorithm" » "based learning algorithms" (Expand Search)
"element mold algorithm" » "element mould algorithm" (Expand Search), "element rd algorithm" (Expand Search), "element colony algorithm" (Expand Search), "elements mold algorithm" (Expand Search)
"data code algorithm" » "data cosine algorithm" (Expand Search), "data rd algorithm" (Expand Search), "data colony 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 mold algorithm") OR ((("data code algorithm") OR ("based learning algorithm"))))~.
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• Removing quotes may allow a broader search: (( element mold algorithm ) OR ((( data code algorithm ) OR ( based learning algorithm )))).
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