Perhaps you should try some spelling variations:
"export shares integration theories." » "export shares integration theorems.", "export shares integrationstheorie 2.", "export shares integration theory.", "export spaces integration theories.", "export fare integration theories.", "export care integration theories.", "export share integration theories."
"import price integration through." » "import price innovation through.", "import service integration through.", "import trade integration through.", "import price indexation through.", "import prices integration through.", "export price integration through.", "export prices integration through."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("export shares integration theories.") or ("import price integration through."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("export shares integration theories.") OR ("import price integration through.")).
• Removing quotes may allow a broader search: (( export shares integration theories. ) or ( import price integration through. )).
• Adding a wildcard symbol may retrieve word variants: (("export shares integration theories.") or ("import price integration through."))*.