Entity Framework generating sql queries without where clauses
public List<Company> Query(Func<Company, bool> expression)
    {
        return MyDbContext.Instance().Company.Where(expression).ToList();
    }

public List<Company> GetLikeName(string textToSearch)
    {
        return MyDbContext.Instance().Company.Where(a => a.Contains(textToSearch)).ToList();
    }

public List<Company> Query(Expression<Func<Company, bool>> expression)