Perhaps you should try some spelling variations:
generative programming » imperative programming, declarative programming, interactive programming
negative programming » reactive programming, creative programming, interactive programming
defining basics » designing basics, training basics, defining cases
basics citrus » asian citrus, bali citrus, basics truss

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: interaction ((negative programming) OR (generative programming)) defining basics citrus~.
• Adding a wildcard symbol may retrieve word variants: interaction ((negative programming) or (generative programming)) defining basics citrus*.