Perhaps you should try some spelling variations:
act jackson » nach jackson, a jackson, c jackson
jackson aid » jackson a, jackson b.d, jackson d
powers act » powers a
how world » how would, new world
how work » new work

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "2008 ((how world) OR (how work)) powers act jackson aid*".