I think your options for coming to Canada are very limited and this is why people aren't responding.
Refugee is out due to the safe third country agreement.
Student visa and visit visa (both temporary statuses) will be difficult to obtain because you must prove strong ties to your home country and prove that you are planning to return once the visa has ended. I think you will struggle to demonstrate either right now given you're in the US with temporary status. However there's certainly nothing stopping you from trying to apply for a visit visa right now. Student visas require that you have already applied to and been accepted by a school in Canada - and they require that you have sufficient money to both pay the foreign student tuition fees (which are substantially higher than the fees for Canadians) and also have enough money (another $10K) to support yourself for a year while you are in school. You don't have enough time to apply for a student visa and have also missed the application window for the college/university January intake.
You've already indicated that you don't have the money to qualify for any of the investor programs. (Even if you did, the application process is long and you would have to apply from Vietnam rather than the US due to your status in the US).
Many people also migrate as skilled workers. Once again, this is a fairly long process (lasting from many months to a few years) and you would have to apply from Vietnam. Also, only certain jobs are accepted and in many cases you must have sufficient points to be given PR. Finally, you must demonstrate that you have sufficient money to establish yourself in Canada.
The last option I can think of would involve finding an employer in Canada who is willing to hire you. This again is not a short process (although it's much faster than many of the above). First you must find an employer. The employer must then post your job on Canadian job boards for a certain period of time (one or two months?) to prove that a Canadian cannot be hired to fill that role. Assuming no Canadians are found, the employer must then submit an application to the Canadian government to request they be allowed to hire you (sometimes there are denied).
Hope this helps.