Secondly, the technical aspect. There are many ways to effectively use the Internet to search for accurate resources. Specific skills can refer to the "Skills and Help" column of well-known search engines such as Google and Baidu. I believe that you will get twice the result with half the effort if you master the correct search method.
Third, the current academic frontier. The problems mentioned by the landlord are undoubtedly urgent problems that well-known research institutions in various countries want to solve, and the emergence of search engines is one of them. In addition, as far as I know, such as the construction of online virtual communities, the rise of interest blogs, and even mature mailing list services are closely related to this. Although many technologies are rich, they still can't meet the needs of netizens. Therefore, this issue is still concerned by experts.
In a word, if you encounter any problems, it's not just the internet, but also reading books, newspapers, telephone consultation and even personal research.
In a word, if you want the results retrieved by search engines to meet your wishes to the greatest extent, you must improve your retrieval technology. I can boldly say that accurate retrieval is really a science.