Why - according to Rashi - did Lavan search Rachel's tent twice?
Rashi #1: Because he knew his daughter to be particularly fidgety, and that, as such, she was the most likely person to have taken the Terafim.
Rashi #2 (in Divrei Hayamim 1, 29:21: The Torah writes "Vayavo be'Ohel Rachel" to clarify "be'Ohel Yakov" that preceded it. 1
See Rashi there as to why the Torah separates them.
What is "Neged Achai"?
Tosfos ha'Shalem (3): It is in front of your brothers, from sons of Yishmael and Keturah, who were related to me.