Highlighting words in a web browser?

[Small Moose Ltd]

Hi again,

When I'm doing research (commonly use Google), I will get page after page to
sift through. Quite often the amount of text will be huge and not applicable
to what I'm looking for. What I'm looking for, say, is a small quote
relating directly to what I'm looking for, but it will be lost in a sea of
text covering a wider issue, a bit like searching for a needle in a
haystack.

With the text I enter into the search field, is there a way those words can
show up highlighted, or in a different colour in the pages the search engine
retrieves for me? 

For example, say the engine brings back a document that's about 25 pages
long. I don't have the time to read through those pages, I want those choice
words to appear highlighted amongst the text, so that when I quickly scroll
down, they jump out very obviously.

Thanks to anyone who can help. :)