In your question, 好 means done. 想找，找，找好, wanna find, finding, found. 想买，买，买好, wanna buy, buying, bought 想好？Maybe means think out. Do you want me to buy some apples for you?要我帮你买点苹果吗？ I‘ve bought it. 我己经买好了。 Do you want me to help you with your work?要我帮你找下工作吗？ I've got one. (Not sure, is it correct?)我己经找好了。 Have you decided what you'd like? 想好要吃什么了吗？ Yes I have.是的，我想好了。

找好，买好，想好 I don't think 找好，买好 ，想好 are set collocations in Chinese. as far as i know, 好 is used here to modify the words that follows 好。in other words, 好 has nothing to do with 找，买，想。 找好房子，买好书，想好点子 uhm...wait a moment, a new thought just occurs to me. ppl might use 好 to modify these verbs to mean "done/finished succeesfully ". for example, 买好了吗？找好了吗？想好了吗？吃好了吗？洗好了吗？ Mom won't let me watch television till all my homework's done. 没做好作业之前，妈妈不会让我看电视 We'll send you a bill when the repairs are done. 我们会在修好之后给你发账单 没明白继续问，哈哈

"好" has different meanings in different context. When we say '你房子 找好/买好 了么？' it means 'have you got your new accommodation? (the person know you were looking for a new house,they are asking about the result)' in this context,'好'means 'done', shows that you have finished the action before'好'。 When we say'买房子可是大事，你可得买好'，‘出国工作可是大事，你可要想好’ in this context,'好'means when you do some important desicions, you need considering seriously before your actions. It is samilar as 'carefully' . The first sentence above means 'It is a big deal to buy a house, you should choose carefully'. The second means'Working abroad is a serious decision , you must consider it carefully'. Hoping it's helpful. I am glad to answer your questions.

Give us some contexts.