I'm not sure whether you are positioned in the Philippines or India. I'm not fully conversant with the environment, policies, procedures, methodology, and avenues prevailing in that country. However, for simple questions, there are a few suggestions in addition to what has already been mentioned by experts above.
Publicizing Job Requirements
You have to publicize your requirements, along with job specifications, in the media like professional magazines and online portals, which you must be aware of. Nowadays, campus interviews are common when you are looking for freshers.
Recruitment for Senior Positions
If your requirements are for senior positions, you might as well collect CVs through professional bodies like Associations of Personnel Managers, the Institution of Engineers, ICAI, ICWAI, ICS, and other societies specializing in various fields. These professional bodies run their periodicals for internal circulation among members and subscribers. Their magazines also have dedicated pages for job searches.
Wider Spectrum of Advertisement
If you are looking for a wider spectrum of advertisement, using media, the internet, and blogs is a workable route.
Regards.