Google not so Powerful Anymore?

Google is my preferred search engine for a long period. Google provide  better search result than their competitor in search engine world and they keep their performance for many years, but world may changes. Google may still the biggest search engine but the the result looks not so powerful anymore. Below are my disappointed moment while trying Google :

1. Google failed to pick the primary source as their preferred search result. As an example, try to search hardware or peripheral driver  (network card, motherboard, modem dll), Google search may end up on various websites who need a  membership or commercial benefit, instead of trusted vendor as original source. Below are the screenshot, showing my search result for dlink dfe-528tx driver. Google display opendrivers, driverskit, driverstock as top search rather than dlink original website.
   
   Google may not entirely wrong. The problem may also on vendor side, their website may have an unfriendly layout for search engine and not really optimized for better search. Beside the vendor problem, Google should improve their performance, because the wrong result means a low quality of Google
2. Google search result end up on another search site. Sometimes I got a weird problem. My search result send me to another search site. As an example, my search query on Google display the search page on Google, but some URL references to a web page that display the search result also, but this time on their page. It seems that Google query result has been hijacked by another website. They catch the query and then automatically generate a page based on the query.

Quo vadis Google?