You've decided to write about how a vegan lifestyle is healthier than other diets. You are looking at news sources and find an article in Vegetarian Monthly that says that vegans have lower cholesterol than non-vegans. However, you don't include a source from Women's Running that indicates vegans usually have issues with B12 deficiency. You have chosen to only utilize sources that support your initial hypothesis. This is confirmation bias.
This is when facts are included but are misrepresented through twisted language or logic.