按圖索驥 [－图－骥]

Jyutping on3 tou4 sok3 kei3
Pinyin àn tú suǒ jì

Definitions (粵典–words.hk)
  1. 動詞
    字面​指​照住​幅圖​去​揾​隻​好​馬​，​比喻​依照​線索​去​揾​一​啲​嘢
    to try and find something with the help of a clue; literally: to look for a fine horse using a picture

按圖索驥 [－图－骥]

Jyutping on3 tou4 saak3 kei3
Pinyin àn tú suǒ jì

Definitions (CC-CEDICT)
  1. lit. looking for a fine horse using only a picture (idiom)
  2. fig. to do things along rigid, conventional lines
  3. to try and find sth with the help of a clue
Definitions (粵典–words.hk)
  1. 動詞
    字面​指​照住​幅圖​去​揾​隻​好​馬​，​比喻​依照​線索​去​揾​一​啲​嘢
    to try and find something with the help of a clue; literally: to look for a fine horse using a picture
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）