Perhaps you should try some spelling variations:
"initial investment services series" » "initial government services series", "initial treatment services series", "initial investment choices series", "national investment services series", "capital investment services series", "initial investment services service", "initial investment prices series", "initial investment services survey"
"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: (("initial investment services series") or ("industrial development center series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("initial investment services series") OR ("industrial development center series")).
• Removing quotes may allow a broader search: (( initial investment services series ) or ( industrial development center series )).
• Adding a wildcard symbol may retrieve word variants: (("initial investment services series") or ("industrial development center series"))*.