No, Vietnam e-Visas are only valid for a single entry. This means that once you leave Vietnam, you will need to apply for a new e-Visa if you plan to visit again.
If you are planning to make multiple trips to Vietnam, or if you plan to leave and re-enter the country during your visit, you may want to consider applying for a traditional visa through a Vietnamese embassy or consulate. Traditional visas can offer more flexibility, as they can be valid for multiple entries and longer periods of time.
It is important to note that the Vietnam e-Visa is only valid for tourism, business, conference, visiting family, and friends purposes, and cannot be used for other purposes such as employment or study. Additionally, the e-Visa is valid for 30 days from the intended entry date on the application, and the maximum length of stay per entry is 30 days. Passport holders can check Vietnam visa requirements for their own country to learn more.