Hello, 找一份工作 找 means try to find, seek , look for .It refers to the process of looking for the job. 得到一份工作? 得到 means to get a job, the acquirement itself. It emphasizes the end result, the state of having obtained the job,the real aim of searching and looking for it. It is like the difference between " I really need to (want to)find a job" and "I really need to get a job." You can use both to almost mean the same, but in the first you are referring to your attempts to search and look for the job, while in the later you refer to your wish to already have a stable job. As for the difference between 需要 and 想 , 需要 expresses the need,while 想 expresses the desire. " 我需要“ I need ”我想“ I wish, I want

找工作means you are looking for one ，得到means you have already had one

找一份工作 Looking for a job. 得到一份工作 Get a job

找：find ,look for ,or hunt 得到：get ,obtain

So many warm-hearted guys!it's very wonderful!