Perhaps you should try some spelling variations:
"industrial investments treaties series" » "industry investments treaties series", "initial investments treaties series", "industrial developments treaties series", "industrial investment treaties series", "industrial investment treaty series", "industrial investment ratios series"
"industrial development center series" » "industrial development case series", "industrial development agencies series", "industrial development center survey"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("industrial investments treaties series") or ("industrial development center series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("industrial investments treaties series") OR ("industrial development center series")).
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