This game can be also played here: https://www.brainzilla.com/word-games/broken-words/cryptic/3/
Use the following chunks to create words related to a specific theme. The theme name itself is also hidden within those words.
DLE - HSH - SAI - LIE - DOG - VER - DAL - EDS - COL - ING - RIE - DAC - ERN - DEN - GLE - MAT - PEK - ATD - ESE - ANE - BEA - ARD - RET - IAN - BRE - GRE - NTB - GOL - UND - POO
Theme: ?
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All the answers have a multiple of three letters.