I knew it.  Your source is transfermarkt.co.uk.  That's not exactly a reliable source for national team stats.  Like I've said, I have used RSSSF which IS reliable and Wartan Ghazarian is Lebanon's top scorer!  Roda Antar also has much less goals than that!  

Mohamed Ghaddar goals
Only 12 goals not 27:
27.01.06 v Saudi Arabia - 1 goal
24.12.06 v Somalia - 2 goals
08.10.07 v India - 2 goals
30.10.07 v India - 2 goals
02.01.08 v Kuwait - 1 goal
09.04.08 v Maldives - 1 goal
27.05.08 v Qatar - 1 goal
07.06.08 v Saudi Arabia - 1 goal
17.08.11 v Syria - 1 goal