1.带 is “bring” eg. 昨天他带了一包饼干给我（He brought me a pack of biscuits to me yesterday.） 拿 is “take” eg. 刚才他在盒子里拿了一包饼干（He took a pack of buscuits from the box just now） 2.simliar relocation verbs:取 means fetch eg. 请把我的帽子取来（Fetch me my hat please.） 拿 can be used here (请帮我拿下帽子), so 拿 is the most frequent relocation verb 3.put something into ... = 放到(=进）.... 里, 放在.... 里 is more like “be put into” so you can say 请把书放到（=进）书包里（please put the books into the schoolbag） The books is in the schoolbag 书（放）在书包里。here 放 can be omitted.

sometimes they are same. they often occur with “来” for example 我给你带来了两个苹果，我给你拿来了两个苹果。it means I have bring two apples for you. by the way I don't think 放进里 or 放在里 are right， we often say 放进去，or 放在……里面，放进……里面。例如，把苹果放在包里面，把苹果放进包里面。

Do you want to know which different between 带 and 拿？带 mean the thing far away from you and someone can bring it to you,having certainly distance. 拿 just it leave you not so far,but both usually can replace

It's just like the word"bring"and"fetch"in english.

Is just like "bring"&"fetch".