Perhaps you should try some spelling variations:
controls exporters » countries exporters, country exporters
exporters series » importers series, express series, reports series
contacts import » contacts importers, contact sport
trade contacts » trade context, face contacts, trade contracting
trade controls » trade control, rate controls, price controls
import surges » import surge, export surges, import success

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trade contacts import surges ) or ( trade controls exporters series ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trade contacts import surges ) OR ( trade controls exporters series )).
• Adding a wildcard symbol may retrieve word variants: (( trade contacts import surges ) or ( trade controls exporters series ))*.