Perhaps you should try some spelling variations:
"modified topology optimization algorithm" » "modified topology optimization algorithms", "modified topology optimisation algorithm", "modified topology estimation algorithm"
"modified allocation estimation algorithmss" » "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimization algorithms", "modified allocation optimization algorithmss", "modified motion estimation algorithmss"

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 algorithm") or ("modified allocation estimation algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified topology optimization algorithm") OR ("modified allocation estimation algorithmss")).
• Removing quotes may allow a broader search: (( modified topology optimization algorithm ) or ( modified allocation estimation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified topology optimization algorithm") or ("modified allocation estimation algorithmss"))*.