Perhaps you should try some spelling variations:
"china international pollen competition" » "china internationale rollen competition", "china international pellet competition", "china international polls competition", "national international pollen competition", "china international open competition", "china international policy competition", "china international pollen collection"
"ima international black competition" » "ima international bank competition", "ima international bonds competition", "ima international best competition", "ima international balk competition", "ima international mark competition"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("china international pollen competition") OR ("ima international black competition")).
• Removing quotes may allow a broader search: (( china international pollen competition ) or ( ima international black competition )).
• Adding a wildcard symbol may retrieve word variants: (("china international pollen competition") or ("ima international black competition"))*.