Tracing my parcels from shanghai china post office

Pls help me to locate my 2 parcel I sent by shanghai
Post office last may 11,2012 and may 14 2012..
It's almost 5 months now ,why this 2 take so long?
The rest that I sent first is arrived here in Dubai
UAE within 3 months?parcel number cp432213715cn
Dated may 11,12 cp 224312238 cn dated may 14,12 ..
Im trying hard to trace and track it online but the tracking
Number didn't appear or not found I'm worried it's lost!
To helping me its a big favor for me...thnkx