To get an interview you should, in no particular order, network, try to find job openings before they are posted, request informational interviews at companies that interest you, improve your resume, improve your skills/experience via study and/or contributing to open source, improve your cover letter.
If you happen to know, can you tell me if the Oracle Java Certification helps? You take an exam and get a certification.
Oracle Java Certification is mentioned here: https://education.oracle.com/oracle-certification-path/pFami...
A Java certification will be helpful but only for jobs that use Java. Java is a popular language and if you enjoy it then I would say study for the certification, make a portfolio, and get certified. But certifications aren’t usually necessary or even very helpful for most web development jobs. Most web development jobs involve JavaScript, and to my knowledge there aren’t any JavaScript certifications that any company cares about.