Return results from 2020

::: warning Google Scholar has strict anti-crawling mechanism implemented, the demo below doesn't guarantee availability. Please deploy your own instance as it might increase the stability. ::: 1. Basic mode, sample query is the keywords desired, eg.「data visualization」, <https://rsshub.app/google/scholar/data+visualization>. 2. Advanced mode, visit [Google Scholar](https://scholar.google.com/schhp?hl=en\&as_sdt=0,5), click the top left corner and select「Advanced Search」, fill in your conditions and submit the search. The URL should look like this: <https://scholar.google.com/scholar?as_q=data+visualization&as_epq=&as_oq=&as_eq=&as_occt=any&as_sauthors=&as_publication=&as_ylo=2018&as_yhi=&hl=en&as_sdt=0%2C5>, copy everything after `https://scholar.google.com/scholar?` from the URL and use it as the query for this route. The complete URL for the above example should look like this: <https://rsshub.app/google/scholar/as_q=data+visualization&as_epq=&as_oq=&as_eq=&as_occt=any&as_sauthors=&as_publication=&as_ylo=2018&as_yhi=&hl=en&as_sdt=0%2C5>.

The parameter id in the route is the id in the URL of the user's Google Scholar reference page, for example `https://scholar.google.com/citations?user=mlmE4JMAAAAJ` to `mlmE4JMAAAAJ`. Query parameters are also supported here, for example `https://scholar.google.com/citations?user=mlmE4JMAAAAJ&sortby=pubdate` to `mlmE4JMAAAAJ&sortby=pubdate`. Please make sure that the user id (`mlmE4JMAAAAJ` in this case) should be the first parameter in the query string.

::: tip 可能仅限中国大陆服务器访问，以实际情况为准。 :::

The URL of the journal [Annual Review of Analytical Chemistry](https://www.annualreviews.org/journal/anchem) is `https://www.annualreviews.org/journal/anchem`, where `anchem` is the id of the journal, so the route for this journal is `/annualreviews/anchem`. ::: tip More jounals can be found in [Browse Journals](https://www.annualreviews.org/action/showPublications). :::

Refer to the URL format `pubs.aip.org/:pub/:jrn` ::: tip More jounals can be found in [AIP Publications](https://publishing.aip.org/publications/find-the-right-journal). :::

The URL of the journal [American Economic Review](https://www.aeaweb.org/journals/aer) is `https://www.aeaweb.org/journals/aer`, where `aer` is the id of the journal, so the route for this journal is `/aeaweb/aer`. ::: tip More jounals can be found in [AEA Journals](https://www.aeaweb.org/journals). :::