Perhaps you should try some spelling variations:
"import care integration theories." » "import care integration theory.", "import care integration through.", "import care integration efforts.", "import fare integration theories.", "import can integration theories.", "import market integration theories.", "import share integration theories.", "import value integration theories."
"import price internet services." » "import price internet service.", "import service internet services.", "import prices internet services.", "export price internet services.", "export prices internet services."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("import care integration theories.") OR ("import price internet services."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"import care integration theories.\") OR (\"import price internet services.\"))*".
• Removing quotes may allow a broader search: (( import care integration theories. ) OR ( import price internet services. ))*.