Perhaps you should try some spelling variations:
"international policy political services" » "international poverty political services", "international prices political services", "national policy political services", "international policy political series", "international policy clinical services", "international policy critical services"
"international credit economic services" » "international capital economic services", "international credit economics series", "international credit ecological services", "international credit economic studies", "international credit economy services", "international credit econometric services", "international media economic services"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("international policy political services") OR ("international credit economic services"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"international policy political services\") OR (\"international credit economic services\"))*".
• Removing quotes may allow a broader search: (( international policy political services ) OR ( international credit economic services ))*.