Perhaps you should try some spelling variations:
"export share integration theories." » "export share integration theory.", "export share integration through.", "export share integration efforts.", "export fare integration theories.", "export care integration theories.", "export trade integration theories.", "exports share integration theories."
"import data lending services." » "import data nonlending services.", "import data planning services.", "import data banking services.", "import data linking services.", "import data handling services.", "import data shedding services.", "import duty lending services."

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: (("export share integration theories.") OR ("import data lending services."))~.
• Removing quotes may allow a broader search: (( export share integration theories. ) or ( import data lending services. ))~.
• Adding a wildcard symbol may retrieve word variants: (("export share integration theories.") or ("import data lending services."))*.