This article deals with how to approach field research in the area of International Business in two countries that have not been very explored up to now: Russia and Vietnam. Based on the experience of two researchers who used qualitative methods for their research, the paper shows how they were forced to adapt their approach to be effective in each context. To do so, the paper resumes a series of practical points, in particular about the interviews, notably how to get in touch with the information owners, how to obtain an interview, how to obtain the cooperation of the interviewee, how to deal with cultural differences, etc. The paper ends with a general conclusion on the constraints of time management and gives some comparative elements about the two countries treated.