Perhaps you should try some spelling variations:
manpower resources » power resources, manager resources, power resource
manager resource » managing resource, management resource, unmanaged resources
manage resources » managed resources, manage resource, unmanaged resources
4.1 costs » 4.1 cost, 4.1 cysts, 4.1 codes
5.1 costs » 5.1 cosets, 5.1 cost, 5.1 comets
21 costs » 11 costs, 21 codes
2 costs » 2 cost, 4 costs
_ costs » _ 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: %((manpower resources) OR (((manager resource) OR (manage resources)))) %((((21 costs) OR (((2 costs) OR (_ costs))))) OR (((((4.1 costs) OR (5.1 costs))) OR (21 cost))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((manpower resources) or (((manager resource) or (manage resources)))) %((((21 costs) or (((2 costs) or (_ costs))))) or (((((4.1 costs) OR (5.1 costs))) or (21 cost))))%22".
• Adding a wildcard symbol may retrieve word variants: %((manpower resources) or (((manager resource) or (manage resources)))) %((((21 costs) or (((2 costs) or (_ costs))))) or (((((4.1 costs) OR (5.1 costs))) or (21 cost))))%22*.