Nowadays it does not matter what country one is in there are always services and resources that can be used to track someone. Read about some of the ideas that you can try to use to locate people in foreign countries.
The chances of finding someone in a foreign country depend on the public service infrastructure and the level of internet usage in that country. One of the ways of how to find people in another country is to use the local telephone book of that country. This is one of the best ways to find people but I have already pointed out the limiting factors to these searches.
If the telephone infrastructure is poor then not many search for court records will have listed numbers reducing the number of people that you can find from the phonebook. If that country does not have its own white pages available online then you are stuck indeed. The good news is a larger percentage of the countries do have their telephone directories online and so they can be used as a way of how to find people in another country.
There are also a number of people finders that have emerged that focus on people searches in specific countries. For most of the countries you will be able to find at least one people finder that has the resources to look up people in that country. One way of how to find people in another country is to look for a locator that can search for people in the country that you are interested in. There are also some locators that can carry out international searches through a number of different countries; you can use those as well.