Perhaps you should try some spelling variations:
"initial investments incentives theories" » "initial investment incentives theories", "initial investment objectives theories", "initial investor incentives theories", "financial investments incentives theories", "municipal investments incentives theories", "initial investments incentives directories"
"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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("initial investments incentives theories") OR ("industrial development center survey"))~.
• Removing quotes may allow a broader search: (( initial investments incentives theories ) or ( industrial development center survey ))~.
• Adding a wildcard symbol may retrieve word variants: (("initial investments incentives theories") or ("industrial development center survey"))*.