How I can efficiently use Google Scholar to find prior research on a topic? For starting a new problem I generally need to look for work already published through Google Scholar. For example, recently I came across an equation, the Pochhammer-Chree equation. When I type this equation name in the Google Scholar tab, a large number of publications on this equations piles up. It is not possible to look for every single publication to check what type of work has already been done on this equation.

Let me elaborate a little more. Suppose I need to check if the Lie symmetry analysis on this equation has been carried out or not. Then I have certain options in advanced search, that to include the words symmetry or symmetry analysis in the title, abstract or in the whole article along with the word Pochhammer-Chree. Here of course the time range can also be given. Unfortunately, even by this type of search I can miss some of the article that have been already published on symmetry analysis of Pochhammer-Chree. 

Is my way of search correct? If not, how should I search through the web by not missing a single article on the topic I am looking for?
It is true; there are too many papers out there to even read the abstracts of all of them. That is why many research papers contain phrases like "to the best of our knowledge", etc. 

My approach to minimize the risk of missing out publications is as follows: I start with reading review papers. These will sum up the research up to a certain point and will show you what the seminal papers in the field are. Then I look up the latest papers that cite the reviews and/or the seminal papers. This approach works very well with Google Scholar.