Perhaps you should try some spelling variations:
"modified bi1 optimization algorithms" » "modified bi1 optimisation algorithm", "modified bi1 estimation algorithms", "modified bi1 estimation algorithm", "modified _ optimization algorithms", "modified qoe optimization algorithms", "modified game optimization algorithms"
"modified objective optimized algorithms" » "modified objective optimized algorithm", "modified objective optimizer algorithms", "modified objective optimal algorithms", "modified objective optimization algorithms"

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