Perhaps you should try some spelling variations:
"transforming rural price series" » "transforming our price series", "transforming a price series", "transforming rural time series", "transforming rural prices series", "transforming rural service series", "transforming rural policy series"
"transforming urban services series" » "transforming arab services series", "transforming african services series", "transforming a services series", "transforming urban services service", "transforming urban services survey", "transforming urban services markets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("transforming rural price series") or ("transforming urban services series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("transforming rural price series") OR ("transforming urban services series"))*.
• Removing quotes may allow a broader search: (( transforming rural price series ) or ( transforming urban services series ))*.