Perhaps you should try some spelling variations:
"modified one approximation algorithm" » "modified one approximation algorithms", "modified time approximation algorithm", "modified _ approximation algorithm", "modified rough approximations algorithm", "modified male approximation algorithm", "modified near approximation algorithm", "modified orca approximation algorithm"
"modified passive convolution algorithms" » "modified passive evolution algorithm", "modified passive solution algorithm", "modified adaptive convolution algorithms"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified one approximation algorithm") OR ("modified passive convolution algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified one approximation algorithm\") OR (\"modified passive convolution algorithms\"))".
• Removing quotes may allow a broader search: (( modified one approximation algorithm ) OR ( modified passive convolution algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified one approximation algorithm") OR ("modified passive convolution algorithms"))*.