Perhaps you should try some spelling variations:
"worlds basic technical paper" » "worlds basic mechanical paper", "worlds basic techniques paper", "worlds basic technical papers", "world basics technical paper", "worlds based technical paper", "worlds bicssc technical paper"
"world basic technical paper" » "world basic mechanical paper", "world basic techniques paper", "world basic technical papers", "world music technical paper", "world bicssc technical paper"
"world bank technical paper" » "world bank technical papers", "world banks technical paper", "world lanka technical paper", "world bands technical paper"
"world basic technique paper" » "world basic techniques paper", "world based technique paper", "world basic technique power", "world basic technique wrapper", "world music technique paper", "world bicssc technique paper"

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: (((("worlds basic technical paper") OR ((("world basic technical paper") OR ("world basic technique paper"))))) OR ("world bank technical paper")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"worlds basic technical paper\") or (((\"world basic technical paper\") OR (\"world basic technique paper\"))))) or (\"world bank technical paper\"))".
• Removing quotes may allow a broader search: (((( worlds basic technical paper ) or ((( world basic technical paper ) OR ( world basic technique paper ))))) or ( world bank technical paper )).
• Adding a wildcard symbol may retrieve word variants: (((("worlds basic technical paper") or ((("world basic technical paper") OR ("world basic technique paper"))))) or ("world bank technical paper"))*.