Perhaps you should try some spelling variations:
transformer costs » transfer costs, transport costs, transformer based
dc transformer » _ transformer, 3 transformer, a transformer
costs across » scores across, risks across
transfer de » transfer der, transfer fee, transfer bei
de cara » de carga, de clara, de caca
luis a » luis f, luis c
a heat » a heart, _ heat, a head

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis (rene OR rent) dc transformer costs across ) OR ( luis a heat transfer de cara ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis (rene OR rent) dc transformer costs across ) OR ( luis a heat transfer de cara ))*.