Perhaps you should try some spelling variations:
"melt processing algorithm" » "melt processing algorithms" (Expand Search), "text processing algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search), "elements method algorithm" (Expand Search)
"based model algorithm" » "based mould algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("based model algorithm") OR ("melt processing algorithm"))) OR ("element method algorithm"))~.
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• Removing quotes may allow a broader search: (((( based model algorithm ) OR ( melt processing algorithm ))) OR ( element method algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("based model algorithm") OR ("melt processing algorithm"))) OR ("element method algorithm"))*.