Good:
- nurse AND education
- advertising AND children
- genetic engineering AND ethics
Better:
- nurs* AND education
- advertis* AND child*
- gene* engineering AND ethic*
Best:
- nurs* AND (educat* OR train* OR school*)
- (advertis* OR market*) AND (child* OR adoles*)
- gene* AND (alter* OR engineer*) AND (ethic* OR moral*)
*BE CAREFUL THOUGH!!*
Some words are not well-suited for truncation and will retrieve much more than you bargained for.
Look at "mat*". Our results could include mates, maternity, mating, matrix, and math.