QUES: The vortex principle allows a flow measurement without moving parts Behind a bluff body in the flow vortexes are generated which are detected by the device and yield the flow velocity

correct the punctuation.

CORRECTED: The vortex principle allows a flow measurement without moving parts: Behind a bluff body in the flow, vortexes are generated which are detected by the device and yield the flow velocity.

QUES: Vintage clothing has never been so fashionable as now Chloe believes in oldies but g oldies

correct the punctuation.

CORRECTED: Vintage clothing has never been so fashionable as now! Chloe believes in "oldies, but g oldies".

QUES: We want to be the leader in quality and available documentation

correct the punctuation.

CORRECTED:
We want to be the leader in quality and available documentation.