東海撈針 [东－捞针]

Jyutping dung1 hoi2 laau4 zam1
Pinyin dōng hǎi lāo zhēn

Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 大海撈針／大海捞针 (dàhǎilāozhēn).
    (syn.) 大海撈針, 大海捞针