Perhaps you should try some spelling variations:
"national investment series series" » "international investment series series", "capital investment series series", "national treatment series series", "national investment services series", "national investment barriers series", "national investment treaties series", "national investment serie series", "national investment theories series"
"industrial development review series" » "industrial development report series", "industrial development center series", "industrial development reform series"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("industrial development review series") or ("national investment series series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial development review series") OR ("national investment series series")).
• Removing quotes may allow a broader search: (( industrial development review series ) or ( national investment series series )).
• Adding a wildcard symbol may retrieve word variants: (("industrial development review series") or ("national investment series series"))*.