Perhaps you should try some spelling variations:
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"
"mapping graining methods algorithm" » "mapping learning methods algorithm", "mapping learning method algorithm", "mapping making methods algorithm"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("mapping graining methods algorithm") OR ("modified objective optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mapping graining methods algorithm\") OR (\"modified objective optimization algorithm\"))".
• Removing quotes may allow a broader search: (( mapping graining methods algorithm ) OR ( modified objective optimization algorithm )).
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