Perhaps you should try some spelling variations:
"representative parameters characterizes" » "representative parameters characterized", "representative parameters characterised", "representative parameters characterise", "representative parameters characterizeds"
"representation parameters characterize" » "presentation parameters characterize", "representation parameters characterized"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("representative parameters characterizes") OR ("representation parameters characterize"))~.
• Removing quotes may allow a broader search: (( representative parameters characterizes ) or ( representation parameters characterize ))~.
• Adding a wildcard symbol may retrieve word variants: (("representative parameters characterizes") or ("representation parameters characterize"))*.