Jim Cramer had 30 buy recommendations between August 18-20,2014.  The largest-cap stocks of the week were Google Inc (NASDAQ:GOOGL), Verizon Communications Inc. (NYSE:VZ), BHP Billiton Limited (ADR) (NYSE:BHP), PepsiCo, Inc. (NYSE:PEP) and The Home Depot, Inc. (NYSE:HD). Jim Cramer has been a long-time fan of Google Inc (NASDAQ:GOOGL) since it went public in 2004. The company had…