Perhaps you should try some spelling variations:
"supply cost integration theories." » "supply cost integration theorems.", "supply cost integrationstheorie 2.", "supply cost integration theory.", "supply post integration theories.", "supply test integration theories.", "supply about integration theories.", "supply costs integration theories."
"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 ("supply cost integration theories."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support grant integration series.\") OR (\"supply cost integration theories.\"))*".
• Removing quotes may allow a broader search: (( support grant integration series. ) OR ( supply cost integration theories. ))*.