Perhaps you should try some spelling variations:
"international political economic surveys" » "international policy economic surveys", "international political economy surveys", "international ecological economics surveys", "international political economic studies", "international political economic systems"
"international energy meteorological services" » "international energy meteorological stations", "international world meteorological services", "international hydro meteorological services", "international energy ecological 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 political economic surveys") or ("international energy meteorological services"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international political economic surveys") OR ("international energy meteorological services"))*.
• Removing quotes may allow a broader search: (( international political economic surveys ) or ( international energy meteorological services ))*.