With the support of the Francophony University Agency, a doctoral program was recently opened at the Hanoi University of Architecture in partnership with four French superior schools of architecture and landscape. It comes on top of master or post-master level courses in architecture and urban planning in which an important place is dedicated to the landscape issue. It is true that, over the last few decades, the notion of landscape has proved to be at the origin of new ways of thinking and doing, based on a renewed vision of the links between societies and their environment and on a particular attention to the ecological, cultural and aesthetic dimensions of the living spaces concerned. One of the challenges is to ensure that architectural and urban projects are not carried out under the sole influence of globalized systems of representation, which are likely to mask the diversity of local knowledge and know-how and to deny specific modes of relationship to territorial resources.The doctoral students enrolled in this program carry out their thesis under the aegis of international co-supervision. This is a system that encourages the mobility of doctoral students and develops scientific cooperation between the French and Vietnamese research teams that host them. This contribution aims to focus on the contribution of doctoral seminars in the field in France and Vietnam. The field is considered here as a means of confronting from the outset, before any analytical breakdown, the complexity of the interrelationships between the phenomena of social, natural or cultural origin that produce urban and peri-urban spaces and make them evolve. We propose here to explain the mechanisms that allow professional practices, related to architectural, urban or landscape projects and mobilizing a multi-cultural approach, to integrate the very production of the knowledge and know-how they bring to bear.< Réduire