Finding Work / Visa in Prague / Czech

Hi I am a Japanese woman and I need help to find a job in Prague.
I am currently based in Singapore, and working with Investment Banking.
I have tried to contact Head Hunter such as Hays, however, no success so far as I don't have EU passport, nor working visa at Czech.
Would someone give me tips to get a job or Blue Card (long term) visa?

Regards,
Yoko