Tambalan is compound in english
 it is a tambalan if you combine two words.
Thre are two kinds of tambalan,
Tambalan na ganap or TG and
Tambalan na Di Ganap or TDG 
Tambalang Ganap is two words
that has no the same meanings
Ex: Bahaghari, Dalagang Bukid
Tambalang Di Ganap is two words
That has the same meanings
ex: Bahay Kubo