How can I write this? Is it correct?

Regional search engines from around the world.

Regional and national web search engines, directories, and ratings in different languages, are
adjusted to the specific features of the language and country,. Therefore the interface is sometimes in several languages.

Here you can take into account the development time, stability, localization, correct ranking and more! (I'm not exactly sure what you're trying to say here, as this isn't my specialty)

Similarities and differences between global and regional search engines the correct to are determine revealed over time on practice. (Again, I'm not entirely clear what you want to say here; this is my best guess)

Here you can will find here:
world processes of many countries, International Network tendentious tv online, radio online and more media. (I would rephrase this as: Here you will find the websites of international media organizations, including tv and radio.)

Sorry I can't be more help!