The survey done human resource solutions company Talentnet in September polled around 500 people aged under 35, most of them working between one and five years in marketing, event organizing, IT, or finance and banking.
Of the not-keen group, 35 percent said their interest had fallen over time because their work was boring, and 26 percent said their boss was not understanding.
Only one quarter of respondents said they start a workday with lots of energy.
Both groups agreed that employee happiness affects business growth.
Most respondents, 94 percent, said salary, welfare measures and experience and style of managers are the most important factors in inspiring and keeping employees happy.
Nguyen Thi An, strategic cooperation director at Talentnet Vietnam, said companies could take several actions to make work more interesting like digitizing repetitive tasks and paperwork and letting employees try different jobs, a demand made by 82 percent of respondents.
Creating strong welfare and salary programs and building teams with strong understanding of employees should be other key goals, she added.