てい手入teire
1.

The act of making necessary adjustments to maintain or improve the condition of something, such as a garden or skin.

2.

The intervention by law enforcement at a crime scene for investigation or to apprehend suspects.

3.

In the context of the game of Go, the action of placing stones to reinforce weak points in one's territory.

Example:

あなたに庭の手入れを手伝って頂きたいのですが。