Perhaps you should try some spelling variations:
world papers » world part, world power, world peter
papers alias » papers aamas, takers alias, waters alias
jackson aid » jackson a, jackson b.d, jackson a.m
how world » how would, new world, how work
jackson d » jackson _, jackson a, jackson b

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: 2008 how world papers alias ((jackson aid) OR (jackson d))*.