Applying Google Search's autocomplete feature to "the three [a-z]'s" returned the following:

gistfile1.txt

the three a's of awesome
the three a's of marriage
the three a's in a relationship
the three b's of baseball
the three c's of life
the three c's of a relationship
the three e's of sustainable development
the three e's of fire prevention
the three e's of leadership
the three f's of life
the three f's for men
the three f's in a relationship
the three g's of exploration
the three i's of eye communication
the three j's of alcohol
the three l's of real estate
the three m's of marketing
the three o's of god
the three p's of marketing
the three p's of time management
the three p's of dating
the three r's of youth protection
the three v's of big data
the three v's of communication
the three w's of life
the three w's of writing
the three w's of goal setting
the three x's of straight edge