Google Search AROUND(n) Operator
Not many know Google's AROUND(n) operator because it's mostly undocumented. This operator allows you search for documents where the distance between the search terms is around 'n'.
Note that this operator only works when you use it in ALL CAPS. Try the following search -
Try this search (click):-
<a href="https://www.google.co.in/#hl=en&biw=1366&bih=585&&sa=X&ei=yXP_TNvBO43yrQfd5t34Bw&ved=0CBgQvgUoAA&q=crazy+AROUND%282%29+engineers&nfpr=1&fp=353305b17292d0d" target="_blank" rel="noopener noreferrer">Google</a>
It will show you results with keywords containing keywords 'crazy' and 'engineers' with about 2 elements in between. This is especially useful when you're searching for quotes, or saying et al.
According to the Mr. Daniel M. Russell, creator of AROUND(n) operator has existed since 5-6 years; but no one really bothered about it.