細故 [细－]

Jyutping sai3 gu3
Pinyin xì gù

Definitions (CC-CANTO)
  1. trivial matters that are not worth fussing over
Definitions (Wiktionary)
  1. noun
    trivial matter
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）