Perhaps you should try some spelling variations:
"transforming train private external" » "transforming urban private external", "transforming frame private external", "transforming leading private external", "transforming train private terminal", "transforming chain private external", "transforming track private external", "transforming trap private external"
"transforming arab prices series" » "transforming rural prices series", "transforming a prices series", "transforming asia prices series", "transforming arab price series", "transforming arab practices series", "transforming arab policies series"

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: (("transforming train private external") OR ("transforming arab prices series"))~.
• Removing quotes may allow a broader search: (( transforming train private external ) or ( transforming arab prices series ))~.
• Adding a wildcard symbol may retrieve word variants: (("transforming train private external") or ("transforming arab prices series"))*.