Perhaps you should try some spelling variations:
"world bands technical paper" » "world pandas technical paper", "world bank technical paper", "world bars technical paper", "world banks technical paper", "world hands technical paper", "world bank's technical paper"
"work banks technical paper" » "work tasks technical paper", "work basics technical paper", "work apis technical paper", "work bank technical paper", "work blacks technical paper", "world banks technical paper"
"work black technical paper" » "work flask technical paper", "work stack technical paper", "work bank technical paper", "work blacks technical paper", "work back technical paper", "work block technical paper"
"work black technical papers" » "work flask technical papers", "work stack technical papers", "work bank technical papers", "work blacks technical papers", "work back technical papers", "work block 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 bands technical paper") OR ((("work banks technical paper") OR ((("work black technical paper") OR ("work black technical papers")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"world bands technical paper\") or (((\"work banks technical paper\") or (((\"work black technical paper\") OR (\"work black technical papers\"))))))".
• Removing quotes may allow a broader search: (( world bands technical paper ) or ((( work banks technical paper ) or ((( work black technical paper ) OR ( work black technical papers )))))).
• Adding a wildcard symbol may retrieve word variants: (("world bands technical paper") or ((("work banks technical paper") or ((("work black technical paper") OR ("work black technical papers"))))))*.