Perhaps you should try some spelling variations:
"import share integration theories." » "import share integration theorems.", "import share integrationstheorie 2.", "import share integration theory.", "import fare integration theories.", "import care integration theories.", "import scale integration theories.", "export share integration theories.", "export shares 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: (("import share integration theories.") or ("import price integration through."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("import share integration theories.") OR ("import price integration through.")).
• Removing quotes may allow a broader search: (( import share integration theories. ) or ( import price integration through. )).
• Adding a wildcard symbol may retrieve word variants: (("import share integration theories.") or ("import price integration through."))*.