Perhaps you should try some spelling variations:
"can private investment perceptions survey" » "can private investment operations survey", "can private investor perceptions survey", "can private investment perspectives survey", "can private investment perception survey", "das private investment perceptions survey", "scale private investment perceptions survey", "cost private investment perceptions survey"
"cfa private import protection series" » "cfa private import protection services", "cfa private import production series", "cfa private import detection series", "cfa private airport protection series", "cfa private ports protection series", "a private import protection series", "aa private import protection series", "c private import protection series"

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: (("can private investment perceptions survey") OR ("cfa private import protection series"))~.
• Removing quotes may allow a broader search: (( can private investment perceptions survey ) or ( cfa private import protection series ))~.
• Adding a wildcard symbol may retrieve word variants: (("can private investment perceptions survey") or ("cfa private import protection series"))*.