It made an ideal design plan of subject search engine and implemented a Intranet search engine system in court.

作出了一种比较理想的主题搜索引擎设计方案并实现了一个法院内网搜索引擎系统。

youdao

Users therefore can search by title, by author, by subject, and often by keyword.

所以用户们可以根据标题、作者、主题，经常是关键字来搜索。

《柯林斯英汉双解大词典》

You'd better have a website or two that you can use to search for a subject.

你最好有一两个网站用来搜索一个主题。

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People use the search engine to find information about almost any subject on the Internet.

VOA: special.2009.04.19

But a requirement that Google justify its results to a regulatory agency or court would subject search to a level of regulation that not only is unnecessary but would be harmful.

FORBES: Why the FTC Was Right Not to Sue Google

No knives of any kind will be allowed on aircraft, and all carry-on baggage will be subject to search.

CNN: FAA imposes restrictions on e-tickets

In a statement, Harvard said it had authorised "a very narrow, careful, and precise subject-line search" to protect confidential student information.

BBC: Harvard University file picture