Perhaps you should try some spelling variations:
"modified passive quantization algorithm" » "modified passive estimation algorithm", "modified adaptive quantization algorithm"
"modified trace optimisation algorithm" » "modified trace optimization algorithms", "modified trace estimation algorithm", "modified trace estimation algorithms", "modified game optimization algorithm", "modified stage optimization algorithm", "modified traces optimisation algorithm", "modified male optimisation algorithm", "modified orca optimisation algorithm"

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