Perhaps you should try some spelling variations:
using bitter » using twitter, using written
done using » line using, move using
bitter tim » better times, bitter thing
tim umwelt » die umwelt, i umwelt
umwelt die » umwelt der, umwelt im, umwelt d
yang jie » yang jin, yang jui, yang jun
die lab » die lag, die lan, die lage
yang xi » yang jui
yang yi » yang jui

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: done using bitter tim umwelt die lab ((((yang jie) OR (yang xi))) OR (((yang di) OR (yang yi)))) ;~.
• Adding a wildcard symbol may retrieve word variants: done using bitter tim umwelt die lab ((((yang jie) or (yang xi))) or (((yang di) or (yang yi)))) ;*.