Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified location optimization algorithms"
"modified time solutions algorithm" » "modified time solution algorithm", "modified time evolution algorithm", "modified time evolutionary algorithm", "modified mild solutions algorithm", "modified bi1 solutions algorithm", "modified male solutions algorithm"

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

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