Perhaps you should try some spelling variations:
"world bank's technical papers" » "world banks technical papers", "world bands technical papers", "world bank technical papers"
"world basics technical paper" » "world basic technical paper", "world basics techniques paper", "world devices technical paper", "word basics technical paper", "world brics technical paper"
"world bruce technical paper" » "world reduce technical paper", "world source technical paper", "world face technical paper", "lord bruce technical paper", "donald bruce technical paper"
"world kris technical papers" » "world apis technical papers", "world gis technical papers", "world clis technical papers", "world kpis technical papers", "world boris technical papers", "world risk technical papers"

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 basics technical paper") OR ("world bruce technical paper"))) OR ((("world bank's technical papers") OR ("world kris technical papers")))).
• Removing quotes may allow a broader search: (((( world basics technical paper ) or ( world bruce technical paper ))) or ((( world bank's technical papers ) or ( world kris technical papers )))).
• Adding a wildcard symbol may retrieve word variants: (((("world basics technical paper") or ("world bruce technical paper"))) or ((("world bank's technical papers") or ("world kris technical papers"))))*.