Perhaps you should try some spelling variations:
28electronic computers » electronic computers, electronics computers, optoelectronic computers
programming language » programming languages
electronic computer » electronic computers, electronics computer, electronics computers
2a syntax » a syntax, 2 syntax, la syntax

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: %((22((programming language) OR (program language))s) OR (((programming language) OR (program language)))) %((28electronic computers) OR (electronic computer))%29 %2a syntax%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22((programming language) OR (program language))s) or (((programming language) OR (program language)))) %((28electronic computers) or (electronic computer))%29 %2a syntax%22".
• Adding a wildcard symbol may retrieve word variants: %((22((programming language) OR (program language))s) or (((programming language) OR (program language)))) %((28electronic computers) or (electronic computer))%29 %2a syntax%22*.