Perhaps you should try some spelling variations:
"internal government policies series" » "internet government policies series", "central government policies series", "national government policies series", "internal government policy series", "internal government politics series"
"industrial development center series" » "industrial development case series", "industrial development century series", "industrial development gender series", "industrial development center studies"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("internal government policies series") OR ("industrial development center series"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"internal government policies series\") OR (\"industrial development center series\"))".
• Removing quotes may allow a broader search: (( internal government policies series ) OR ( industrial development center series )).
• Adding a wildcard symbol may retrieve word variants: (("internal government policies series") OR ("industrial development center series"))*.