Perhaps you should try some spelling variations:
"municipal investment services series" » "municipal investments services series", "municipal government services series", "municipal governments services series", "municipal treatment services series", "municipal investment choices series", "municipal investment services service", "municipal investment prices series", "municipal investment services survey"
"industrial development case series" » "industrial development china series", "industrial development care series", "industrial development cass series", "industrial development case stories"

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

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