Perhaps you should try some spelling variations:
"das software development community practices." » "das software development common practices.", "das software development communication practices.", "das software development communicative practices.", "dal software development community practices.", "desk software development community practices.", "der software development community practices."
"web scale development impact problems." » "web estate development impact problems.", "web trade development impact problems.", "web sme development impact problems.", "web scale development input problems.", "web scale development impact people's.", "web scale development import problem.", "lab scale development impact problems."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("das software development community practices.") or ("web scale development impact problems."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("das software development community practices.") OR ("web scale development impact problems.")).
• Removing quotes may allow a broader search: (( das software development community practices. ) or ( web scale development impact problems. )).
• Adding a wildcard symbol may retrieve word variants: (("das software development community practices.") or ("web scale development impact problems."))*.