First, read the English article below.

Just like their immature little brothers and sisters on the schoolyard, workplace bullies use same tools of intimidation and manipulation to bring you down. Learning to recognize their behavior is the first step in putting a stop to it and getting back to work in a comfortable environment.  A bully gains enjoyment from tormenting others. You might not always get along with everyone at work, but that doesn't mean you've got a bully on your hands any more than you're a bully yourself. Distinguish between the two by recognizing this trait--does this person seem to make special effort in messing with you, tripping you up, or bringing you down? Do they seem to enjoy it? If the answer is yes, this might suggest a bully. Bullies often have deep-seated psychological issues related to control. Know that your bullying has less to do with your performance and your personality and more to do with the bully's insecurities. Watch for the sure signs of a bully that signify more than a simple misunderstanding or personal disagreement. Workplace bullying might include:  Shouting, whether in private, in front of colleagues, or in front of customers Name-calling Belittling or disrespectful comments Excessive monitoring, criticizing, or nitpicking someone's work Deliberately overloading someone with work Undermining someone's work by setting them up to fail Purposefully withholding information needed to perform a job efficiently Actively excluding someone from normal workplace/staff room conversations and making someone feel unwelcome You might be suffering from bullying if you suffer at home in the following ways:  You have trouble sleeping or struggle with nausea and vomiting because you're scared to go to work Your family gets frustrated because of how much you talk and obsess about work problems You spend days off worrying about going back to work Your doctor notices health problems like blood pressure and other stress concerns You feel guilty about having provoked your workplace troubles If you feel singled out unfairly, or... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Tìm hiểu xem kẻ đi bắt nạt là ai và kẻ đó làm những gì. Nhận ra được những hành vi bắt nạt. Những dấu hiệu sau đây xuất hiện ngoài công sở cũng cho thấy bạn là nạn nhân của những kẻ bắt nạt. Đừng lờ đi cảm giác là mình đang bị bắt nạt.