Perhaps you should try some spelling variations:
documentation a » documentation _, documentation fast
i documentation » _ documentation, a documentation, b documentation
qsar based » quasar based, ar based, car based
snar based » snag based, star based, sugar based
sar based » star based, ar based, car based
a curtan » a curran, _ curtain, _ cartan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((sar based) OR (qsar based))) OR (snar based)) i documentation a curtan-metragem~.
• Adding a wildcard symbol may retrieve word variants: ((((sar based) or (qsar based))) or (snar based)) i documentation a curtan-metragem*.