normally if tourist visit, they will give u 1 month, so dapat within that period u get a job na, or if still none apply for extension a week before your visa expires. sometimes on the 3rd month they exit to malaysia and then get another 1 month visa, coz its cheaper and easier to go to malaysia than go back to the philippines, this is if your really job hunting in sg!
E-pass or Employment pass is given usually to white collar jobs or higher paying jobs , while S- pass naman is given to those like saleslady, etc, below salary of SSg2,000. then work permit naman is given to those who work as domestic helpers..now the dilema lies in Ministry of manpower (MOM) which means u have to pass to have an issuance of e-pass or s-pass to be able to work, but they are really strict! job vacancy is a lot but hard to pass s MOM!