Perhaps you should try some spelling variations:
der transformer » dc transformer, se transformer, der transferamter
transformer les » transformer 1, transformer _, transformer based
transfer bei » transfer beim, transfers bei, transfer der
les across » lines across, lives across, smes across
bis end » bis ende
end der » end er, nnd der, elend der
heat » head

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( bis end der transformer les across ) OR ( luis _ heat transfer bei (macro OR macau) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( bis end der transformer les across ) OR ( luis _ heat transfer bei (macro OR macau) ))".
• Adding a wildcard symbol may retrieve word variants: (( bis end der transformer les across ) OR ( luis _ heat transfer bei (macro OR macau) ))*.