1. A multilingual mixed search method, comprising: receiving a query word entered by a user and identifying source language of the query word; translating, using a processor, the query word from the source language to query words of a plurality of target languages, the plurality of target languages being different than the source language; using the query word in a corresponding target language as a basis for searching an index of web page information corresponding to the corresponding target language and obtaining web page information in the corresponding target language; from the web page information obtained from the index corresponding to the corresponding target language, translating, using the processor, the obtained web page information from the corresponding target language to the source language; and sending back at least one piece of the obtained web page information to the user.