Perhaps you should try some spelling variations:
pool transmission » power transmission, world transmission, comp transmission
transmission line » transmission lines, transmission _
firms transaction » firms transactional, from transaction, sales transaction
transaction price » transaction prices, transaction services, transaction fee
harold firms » held firms, harold adams, harold sir
harold pool » harold bloom

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( harold pool transmission line. ) or ( harold firms transaction price. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( harold pool transmission line. ) OR ( harold firms transaction price. )).
• Adding a wildcard symbol may retrieve word variants: (( harold pool transmission line. ) or ( harold firms transaction price. ))*.