Complex sentence: Reporter Without Borders ranks Vietnam at 175 out of 180 countries in the 2016 World Press Freedom Index, and the country is recognized as "not free" for the press freedom in 2015.
Split into simpler sentences: Reporter Without Borders ranks Vietnam at 175 out of 180 countries in the 2016 World Press Freedom Index. Vietnam is recognized as "not free" for the press freedom in 2015.