Perhaps you should try some spelling variations:
"processing capital statistical methods." » "processing digital statistical methods.", "processing data statistical methods."
"processing base statistical methods." » "processing bayesian statistical methods.", "processing _ statistical methods.", "processing data statistical methods.", "processing spain statistical methods.", "processing zones statistical methods."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("processing base statistical methods.") or ("processing capital statistical methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("processing base statistical methods.") OR ("processing capital statistical methods."))*.
• Removing quotes may allow a broader search: (( processing base statistical methods. ) or ( processing capital statistical methods. ))*.