Things just didn't work out as planned.

事情没有像计划的那样进展顺利。

《柯林斯英汉双解大词典》

Everything went exactly as planned.

一切都严格地按计划进行。

《牛津词典》

The meeting will take place [proceed] as planned.

会议将按预定的计划进行。

《新英汉大辞典》

Everything worked as planned. Everyone expected the third moon-landing flight, Apollo Thirteen, would go as well as the first two.

VOA: special.2009.07.22

And he made sure the country held its next presidential election as planned in eighteen sixty-four,when he was re-elected.

VOA: special.2009.02.09

The planned construction is on lands that Israel captured as part of its victory in the 1967 Arab-Israeli war.

VOA: standard.2009.11.18

Human saliva is what softens Revolymer gum, so when the gum dries out--if it works as planned--it should become hard and therefore be easier to remove.

FORBES: Magazine Article

It might not be as quick a tapping a button, but it works as planned -- not to mention we didn't accidentally trigger it during our play session by jostling the rifle about.

ENGADGET: blogger-avatar

But we (and often they) post-rationalise things as if it was all planned as such from the get-go.

FORBES: Leadership and serendipity