It may not be hit by the search keyword

It may not be hit by the search keyword.

Example) Search for the following posted content
Character string: ABCin Search keyword: ABC Hit
Character string: TECin Search keyword: TEC Hit
Character string: CABin Search keyword: CAB No hit

It may not hit depending on the above characters,
Is there a solution?

●イメージ
検索キーワード:ABC

検索キーワード:TEC

検索キーワード:CAB