Perhaps you should try some spelling variations:
"internal government agencies series" » "internet government agencies series", "central government agencies series", "national government agencies series", "internal government policies series", "internal government agencies saras", "internal government agencies overview"
"industrial development center survey" » "industrial development case survey", "industrial development sector survey", "industrial development center series"

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 agencies series") OR ("industrial development center survey"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"internal government agencies series\") OR (\"industrial development center survey\"))*".
• Removing quotes may allow a broader search: (( internal government agencies series ) OR ( industrial development center survey ))*.