Perhaps you should try some spelling variations:
manager resources » managed resources, manage resources, manage resource
manager resource » managing resource, management resource, unmanaged resources
2f costs » 2 costs, 23 costs, 21 costs
_ costs » _ cost
1 costs » 10 costs, 12 costs, 1 cost

Try widening your search to All Fields.

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: %((manager resource) OR (manager resources)) %((((2f costs) OR (_ costs))) OR (1 costs))%22.
• Adding a wildcard symbol may retrieve word variants: %((manager resource) or (manager resources)) %((((2f costs) or (_ costs))) or (1 costs))%22*.