Thai Hot And Sour Shrimp Soup

• 15 straw mushroom
• 4 kaffir lime leaves
• 3 green chilies (fresh hot)
• 2 sticks lemon grass
• 2 from stick of lemon grass starting (pieces)
• 1 from the bottom end
• 1,200 ml chicken stock
• 45 ml lime juice
• 18 gr coriander leaves (fresh)
• 16 ml fish sauce