Perhaps you should try some spelling variations:
"modified allocation optimization algorithm" » "modified allocation optimization algorithms", "modified allocation optimisation algorithm", "modified allocation estimation algorithm", "modified location optimization algorithm"
"modified pulse optimizer algorithms" » "modified pulse optimized algorithms", "modified pulse optimized algorithm", "modified pulse optimization algorithms", "modified male optimizer algorithms", "modified passive optimizer 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 pulse optimizer algorithms") or ("modified allocation optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified pulse optimizer algorithms") OR ("modified allocation optimization algorithm")).
• Removing quotes may allow a broader search: (( modified pulse optimizer algorithms ) or ( modified allocation optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified pulse optimizer algorithms") or ("modified allocation optimization algorithm"))*.