Hi @ViasnaPhon !
Well done! Congratulations 
for your commitment!
for your inquiry you might know that due to some regulations google map has restrictions for some areas..for plenty reasons ..
However I’ll invite you to check out this " Roads adding! ".
And About restrictions areas I think mr @MortenCopenhagen could check that if your current zone is an restricted zone or mr @SophatCHY could informe us on the combodia’s status regarding restrictions!..
Thanks!
#LG.