Google finds thesis, but not indexed google scholar I have recently finished my thesis, and it has been uploaded to my university's e-thesis server roughly 4 weeks ago.

The thesis can be found via google, after I manually submitted the link to google.
Unfortunatly, the thesis is not found via google scholar. Many of my colleage's thesis (with very similar, standard format), which are at the same e-thesis server, are found via google scholar (and the google scholar link then points to that e-thesis server).

Is there any way I can make google scholar index my thesis?
There is no guarantee: all the Google-Scholar's algorithms are pretty much machine-learning and heuristics.

Still, if your thesis' format is similar to what the other colleagues submitted, the chances are high it would be treated similarly.  Just wait a bit, as @nengel said.

If your thesis itself were very similar, it would be plagiarism: in this case, Google scholar would be right on not indexing your work (regardless of the algorithmic process that led to non-indexing).