Perhaps you should try some spelling variations:
"import duties integration process." » "import duties reintegration process.", "import duties migration process.", "import duties innovation process.", "import studies integration process.", "import dis integration process.", "import dutch integration process."
"supply good conservation efforts." » "supply wood conservation efforts.", "supply good conversation efforts.", "supply good conversations efforts.", "supply food conservation efforts.", "supply cold conservation efforts.", "supply crowd conservation efforts."

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: (("supply good conservation efforts.") OR ("import duties integration process."))~.
• Removing quotes may allow a broader search: (( supply good conservation efforts. ) or ( import duties integration process. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply good conservation efforts.") or ("import duties integration process."))*.