It depends on:
Number of offenses?
Seriousness of offenses (violent or not; felony or misdemeanor)?
How long ago?
Were you a juvenile?
Where they happened (in the USA, another country)?
Who is looking (which company or government agency)?
Your purpose and definition of \"get past\"?
If you are trying to completely hide serious offenses that occurred in the USA, that will be very difficult or impossible
If you are a first offended for nonviolent crimes, you can get the record expunged. Even so, private data companies may already have the information and they will keep it available.
Justice officials (prison, police, judges, probation officers) will still have access to expunged information in case you get into trouble again.
If you deceive a government official, then you would be committing another crime and compounding your problem.
In the private sector, some companies look past nonviolent crimes because they need the workers. Once you are hired, if you are a dedicated worker, maybe you can move up. That is your best bet.
With a record for violent crimes, you should work with a case worker to get started with a company that is known to accept people with bad records. There will be a few and you may have to move to where they are. Do what it takes to get started with a company, then be a great employee.
It helps if you have skills. Work with a case worker to get into a training program for a skill that you might enjoy. Don't be tricked by training programs that just want you to take out a government loan so they can get your money. Work with the case worker to select a skill that is in demand so that you actually wind up with a job.
Many people and companies can appreciate honesty, skills, and effort. That is the best method to \"get past\" a criminal record.