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
22program language » programs language, program languge, program languages
2f syntax » 2 syntax, f syntax, 2a 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: %((((22program language) OR (program language))) OR (programming language)) %((28electronic computers) OR (electronic computer))%29 %2f syntax%22.
• Adding a wildcard symbol may retrieve word variants: %((((22program language) or (program language))) or (programming language)) %((28electronic computers) or (electronic computer))%29 %2f syntax%22*.