How to change "search", "Read more", "sign up" into my language

Hi,
is there a possibility to translate these buttons into my language please (Russian)?
Thanks,
KA

 

1.For your first issue

Go to searchform.php present in your theme directory and follow the instruction as shown in image given below




2.For your second issue

Go to front-page.php present in your theme directory and follow the instruction as shown in image given below




Use same process for others also.

3.For your third issue

Go to front-page.php present in your theme directory and follow the instruction as shown in image given below

 

Thank you, was very easy. Last similar thing to change please - "Home" title of the home page?
P.S. Happy new 2013!

 

Create custom menu and change "Home" from there.
Check image for reference.