As I get help from machine translation, there are so many repetitive errors, typos, and mistakes. I want find and replace feature to be equipped with content translation. With that function, I would be able to translate articles more easily.
Topic on Talk:Content translation
We plan to add the full Visual editor into Content Translation, and when this is done, Visual editor's search and replace will be available, too.
Find and replace would definitely be helpful, but it also requires work form the user and it may be error prone in some cases. For the case that @Priviet mentions, it may be more convenient for the system to remember the changes the user does and apply/suggest them the next time. Some thoughts about this were captured in this ticket.
Some configurable post processing macros will be good.