Perhaps you should try some spelling variations:
"world manko working paper" » "world macro working paper", "world django working paper", "world manner working paper", "world many working paper", "world make working paper", "world mark working paper"
"world manko working papers" » "world macro working papers", "world django working papers", "world manner working papers", "world many working papers", "world make working papers", "world mark working papers"
world manner » world matter, world anne, world inner
world manned » world anne, world market, world made

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: (((("world manko working paper") OR ("((world manner) OR (world manned)) working paper"))) OR ("world manko working papers")).
• Removing quotes may allow a broader search: (((( world manko working paper ) or ( ((world manner) OR (world manned)) working paper ))) or ( world manko working papers )).
• Adding a wildcard symbol may retrieve word variants: (((("world manko working paper") or ("((world manner) OR (world manned)) working paper"))) or ("world manko working papers"))*.