To be more successful in finding a job, make yourself familiar with HR and Recruitment, you will find a lot of interesting facts once you done so. Such as, the reference letter, you get from your last employment, does not detail your responsibilities in that position. So you can be very generous with the description of your workload and responsibilities, but careful not to brag or lie, you might have to prove yourself in the new job. But euphemisms are very helpful
First things first, your job title should mean something to the recruiter, if you have a job title that doesn’t reflect your position, you will easily be overlooked.
Like Business Service Agent, which is actually an Administrator with Reception duties won't be recognized, but changed to Business Services Administrator will.
So feel free to change the job title to the actual position and rectify in the interview.
The format of a CV is also very important, a solid CV stands for a solid worker, be careful not to have more than 2 pages and list down your duties by importance.
And as I said before, euphemisms are the friend of the jobseeker.