Untranslatable strings

There are some untranslatable strings:
1- “Recent Posts” on the bottom of first page.
2- “More…” under recent posts of first page.
3- “Search” in search text-box in top left of posts and pages.
4- There’s also “←” and “→” characters for post navigation which are not RTL.
You can see bota.webnashr.com