不無小補 [－无－补]

Jyutping bat1 mou4 siu2 bou2
Pinyin bù wú xiǎo bǔ

Definitions (CC-CEDICT)
  1. not be without some advantage
  2. be of some help
Definitions (Wiktionary)
  1. phrase, idiomatic
    to not be without some advantage; to be of some help