Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimized algorithms", "modified location optimization algorithms"
"modified charging optimisation algorithm" » "modified charging estimation algorithm", "modified charging estimation algorithms", "modified staffing optimization algorithm", "modified caging optimisation algorithm", "modified carbon optimisation 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 charging optimisation algorithm") OR ("modified allocation optimization algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified charging optimisation algorithm\") OR (\"modified allocation optimization algorithms\"))".
• Removing quotes may allow a broader search: (( modified charging optimisation algorithm ) OR ( modified allocation optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified charging optimisation algorithm") OR ("modified allocation optimization algorithms"))*.