Perhaps you should try some spelling variations:
estimates using » estimation using
smad estimates » road estimates, demand estimates, sharp estimates
des klangs » des planungs
klangs der » klang der, lange der, klage der
klang des » klang der, klarung des, klange das
der smad » der smart, der saar, der saa
dong bin » dong di, dann bin

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

• Performing a fuzzy search may retrieve terms with similar spellings: klang des klangs der smad estimates using ((dong sin) or (dong bin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: klang des klangs der smad estimates using ((dong sin) OR (dong bin)) ;*.