Perhaps you should try some spelling variations:
"modified bi1 optimization algorithmss" » "modified bi1 optimization algorithms", "modified bi1 optimisation algorithm", "modified bi1 estimation algorithms", "modified bi1 optimization algorithmsss", "modified bi1 optimisation algorithmss", "modified bi1 estimation algorithmss", "modified _ optimization algorithmss", "modified qoe optimization algorithmss", "modified game optimization algorithmss"
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective optimization algorithm") or ("modified bi1 optimization algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective optimization algorithm") OR ("modified bi1 optimization algorithmss")).
• Removing quotes may allow a broader search: (( modified objective optimization algorithm ) or ( modified bi1 optimization algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithm") or ("modified bi1 optimization algorithmss"))*.