Perhaps you should try some spelling variations:
"import price integration theorems." » "import price integration theories.", "import price integration theory.", "import price integrationstheorie 2.", "import service integration theorems.", "import trade integration theorems.", "import price indexation theorems.", "import prices integration theorems.", "export price integration theorems.", "export prices integration theorems."
"support grant integration series." » "support grant integration services.", "support grant interaction series.", "support grant integration server.", "support migrant integration series.", "support migrants integration series.", "support statt integration series."

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

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