Yabla Chinese

Yabla video uses of 毂
“戬 "jiǎn
毂” gǔ"
这 zhè
俩 liǎ
字 zì
有 yǒu
什么 shénme
讲究 jiǎngjiu
呢？ ne?
"Jian Gu." What special meaning do these characters have?