error in Tirhuta script

error in Tirhuta script

Sir, My mother tounge is Maithili, and script is Tirhuta.
Unicode is also supoorting script of Tirhuta 
http://unicode.org/charts/PDF/U11480.pdf
for more details.
Maithili language is also offcial language of India from 2003-2004.
when i type tirhuta on page name of website name, or blog heading not supporting. but supporting in text area in website or blog.
Please support Tirhuta in all area.