Perhaps you should try some spelling variations:
"modified _damdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified _damdaptive estimation algorithm"
"modified df simulation algorithm" » "modified df estimation algorithm", "modified df solution algorithm", "modified df optimisation algorithm", "modified _ simulation algorithm", "modified a simulation algorithm", "modified 3d simulation algorithm", "modified adam simulation algorithm", "modified bi1 simulation 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 _damdaptive quantization algorithm") or ("modified df simulation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified _damdaptive quantization algorithm") OR ("modified df simulation algorithm")).
• Removing quotes may allow a broader search: (( modified _damdaptive quantization algorithm ) or ( modified df simulation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified _damdaptive quantization algorithm") or ("modified df simulation algorithm"))*.