Seeded third, Sania and Strycova defeated the sixth seed Hungarian-Kazakhstan team 6-3 7-6 (5) in the quarterfinals USD 2,589,000 tournament.
Sania Strycova broke their rivals four times and dropped their serve thrice in the one-hour and 18 minute contest.
They next face second seed Taipei team of Hao-Ching Chan and Yung-Jan Chan.
Sania has won three titles in her last four tournaments she has played after splitting with Martina Hingis.