Concerning Workers Permits in Vietnam

My boyfriend is Vietnamese, and I am from the US. In about a year and a half or so, we plan to move back to his home country (he is an international student).

He will be the main breadwinner, and I hope to adapt to living in a new country, however, I'd like to pick up a part time job, and it seems from what I have read that the only way to get a visa that lasts for more than 90 days is to get a workers permit (as well as to legally work in the country).

I've read that you need either a college degree, letters of recommendation from previous employers, and have a clean criminal record. I don't have a college degree. However, I do have extensive experience in the hospitality field (restaurants etc) and can get excellent references.

I currently work for Mcdonald's, which my managers have instructed me that I can get a 'preferred' application' when applying at another one worldwide. So basically, it means that if there is an opening, I will be placed at the top of the list. While I've never gotten arrested,

I had a marijuana charge (it got dropped in court, but it still shows up that it happened) and a few traffic tickets.

I also read that you have to be professional, or a manager in order to qualify for the work visa.

Can you get a visa for doing simple work like in a restaurant?

Do you guys think it would be possible for me to acquire a visa? Are there any other visa options for long term
stays?

Thanks for the help.