"G.R. Patterson III" wrote in message
...
If you entered exactly what you just described, that's an interesting
result. The
first query will find all items which have the term "general aviation" in
them. The
word "China" is optional.

Google doesn't have the concept of "optional" words for the search text.

The second query will find everything with "China" in it.
The term "general aviation" is optional.

Ditto.

If indeed you have no spaces in the first
query, that might explain why it returned no results. In that case, it
will only
return links to articles which have the string 'China+"general aviation"'
in them,
and I'd bet there aren't too many of those.

Actually, it returns all of the pages with both the term "china+" and the
phrase "general aviation" in them. There are only about 2400 pages with
"china+" in them, and none contain the phrase "general aviation".

Pete