What are the Chinese characters for Cantonese 'tìm ge la wo'?
Well, it's

keuih: 佢

lo-jo: 攞咗

daih: 第

yat: 一

mihng: 名

tim: 添 (u+6dfb)

ge: 㗎 (u+67b6)

la: 啦 (u+5566)

wo: 喎 (u+558e)

Next, I disagree with the author that these four particles would be used together, in colloquial speech.

Most likely, a Cantonese speaker would say:

佢攞咗第一名添

佢攞咗第一名架

佢攞咗第一名架啦

佢攞咗第一名架啦喎

佢攞咗第一名啦

佢攞咗第一名喎

Just not all four together.