Perhaps you should try some spelling variations:
signal transmission » sexual transmission, national transmission, regional transmission
innovation series » innovation systems, innovation system
nepal social » legal social, real social, general social
deal social » real social, deadly social, legal social
palm signal » als signal, small signal, space signal
lines » line

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((nepal social) OR (deal social)) innovation series ) or ( palm signal transmission lines ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((nepal social) OR (deal social)) innovation series ) OR ( palm signal transmission lines )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((nepal social) OR (deal social)) innovation series ) or ( palm signal transmission lines ))".
• Adding a wildcard symbol may retrieve word variants: (( ((nepal social) OR (deal social)) innovation series ) or ( palm signal transmission lines ))*.