YOU SAID:

why doesn't this work well?

INTO JAPANESE

なぜこれがうまく動作しませんか。

BACK INTO ENGLISH

Why it does not work?

INTO JAPANESE

それは動作しませんなぜですか。

BACK INTO ENGLISH

It does not work why?.

INTO JAPANESE

なぜをうまくいかない?

BACK INTO ENGLISH

Why doesn't work?

INTO JAPANESE

効果ないだと？

BACK INTO ENGLISH

Doesn't work?

INTO JAPANESE

効果ないだと？

BACK INTO ENGLISH

Doesn't work?