鑽營 [钻营]

Jyutping zyun3 jing4
Pinyin zuān yíng

Definitions (粵典–words.hk)
  1. 動詞
    攀附​有權​勢​嘅​人​，​獲取​個​人​利益
    to curry favor; to toady for personal gain
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）

鑽營 [钻营]

Jyutping zyun1 jing4
Pinyin zuān yíng

Definitions (CC-CEDICT)
  1. toadying for personal gain
  2. to curry favor
  3. to study in great depth
Definitions (Wiktionary)
  1. verb
    to curry favor with somebody in authority for personal gain; to secure personal gain
    (syn.) 鑽, 钻