Build Great Zim and place there, or make sure one city has significantly more gold.
Hiding great works works....building 1 big city which has most gold and a theatre with works and a campus and thats normally where they go but stealing science is quite popular now and does seem random. It would be nice if the chance of stealing science was based on the science output much like the gold you get from a commercial hubby. ... didn't V steals benefit from higher pop?