できるだけ

expression, adverb, noun which may take the genitive case particle 'no'

as much as possible; as ... as one can

Used to express doing something to the greatest extent possible. Often followed by a verb or adjective. Can also modify nouns with の.

• できるだけ早はやく来きてください。

  Please come as soon as possible.

• できるだけのことはした。

  I did everything I could.