Perhaps you should try some spelling variations:
employee » employees, employed
employeds » employees, employed, employes
employers » employees, employed
co-operatives" » co-operative", co-operativen", co-cooperatives"

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: (("(employee or (employeds OR employers))-ownership & co-operatives") OR ("(employee or (employeds OR employers))-ownership & co-operations")).
• Removing quotes may allow a broader search: (( (employee or (employeds OR employers))-ownership & co-operatives ) or ( (employee or (employeds OR employers))-ownership & co-operations )).
• Adding a wildcard symbol may retrieve word variants: (("(employee or (employeds OR employers))-ownership & co-operatives") or ("(employee or (employeds OR employers))-ownership & co-operations"))*.