Many reasons, bu some of them are as under:

Russia:
1- Last PPP govt tried its best to establish good relations with Russia. Army also, first time in history, supported this move.
2- Russia want to benefit from anti-america sentiments in Pakistan.
3- Russia is somewhat convinced with the strategic importance of Pakistan especially after her disintegration.
4- Pakistan could prove to be a good trade market for Russia due to huge population.
5- India somewhat disappointed Russia by making many deals with U.S just to harm Pakistan

Germany:

1- During past few years, thousands of Pakistanis have moved to Germany as immigrants or as students. They have helped a lot in improving Pakistan's image & culminating friendly & pro-Pakistan sentiments in German power circles.

2- U.S surveillance especially of German Chancellor has created much distrust & has created a sense of insult among Germans, so now they are in a process of making new friends.