Translation of "denna" into English

Jag behöver fler exempel för att veta hur detta ord används.

I need more examples to know how this word is used.

Var köpte du denne klänning?

Where did you buy that dress?

Till detta kommer just vad gäller Internet tekniska svårigheter beträffande kontroll av innehållet.

And in the case of the Internet there are also technical difficulties involved in monitoring the contents.