"I know that's part of my family, but technically they have no ties to me." At another point she reveals, "I used to watch this show 'Fresh off the Boat' and imagine my parents sort of looking like them." These teens are yearning for something but also acknowledge they don't always know what that is. It's hard to articulate all their feelings but the curiosity is there. Which is why all three families decide to travel to China together and visit the orphanages where the girls were raised as infants. And also, possibly meet their biological parents if a match can be found. Watching the documentary, you might wonder why they invited director Amanda Lipitz into their lives. They come across as private people but Lipitz had an "in"; she is Chloe's aunt. Oddly, that information isn't disclosed in the film. That feels like an important detail and it wouldn't take away from the movie to acknowledge it. If anything, it would deepen it. Their contact in China is a young woman named Liu Hao. She's a Beijing-based genealogist who is their liaison, working to help find their biological parents. It's a painstaking process that includes posting photos on social media in the hopes that someone might see the year of birth and the images and notice a family resemblance; then she travels to the village or city where the potential parents live and procures a saliva sample to test their DNA. Generations of families have been left quietly devastated by the emotional fallout of the one-child policy and she's wonderfully sensitive to this: "A lot of my relatives, they just gave up their children, their girls," she says. "And my parents, they almost gave up me because they didn't want to pay the penalty." Her mother's side of the family insisted they keep her, but says she always felt estranged and unwanted by her father. So even though she grew up with her biological family in China, she has some sense of the dynamics at play. "That's why I feel so connected with the girls," she says of the three teens, and she's able to locate the nannies who took care of them as babies. Liu Hao is a Beijin-based genealogy researcher who helps adoptees and their birth parents connect. She is featured in the Netflix documentary "Found." (Netflix) It's stunning to hear that each nanny remembers the girls so clearly.