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