Hi @Ayham

I understand what you are saying because I deal with that some days ago. I don't know the reason for that limit but it's better that way. You could see all the elements records by making any search in the "search more" list filter and after clear the new search filter you will see all the records. I develop an js extension to make it display all the records always and all the many2one get very very slow, so I disable it. Here is the code for some one else that will be ok with the slow performance. This need to be defined in a loaded js file, there is a lot of others examples of how to load it so I just put the code here:

instance.web.DataSet.include({
    name_search: function (name, domain, operator, limit) {
        limit = 0;
        return this._model.call('name_search', {
            name: name || '',
            args: domain || false,
            operator: operator || 'ilike',
            context: this._model.context(),
            limit: limit || 0
        });
    },
});