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