There is at least one Master's degree programme to continue on to from each Bachelor's degree programme. If you wish to study a Master's degree programme which does not fully match your Bachelor's degree programme, if you had your previous education at another university (in or outside the Netherlands), or if your previous education was at a University of Professional Education (Hogeschool), you need to apply to be admitted. Whether you can be admitted to the degree programme of your choice is decided on by the Admission Board of the faculty you wish to study.
More information on admission requirements and general information for prospective international students is available here