as google mention:

allinurl: If you start a query with [allinurl:], Google will restrict the results to those with all of the query words in the url. For instance, [allinurl: google search] will return only documents that have both "google" and "search" in the url.

and

inurl: If you include [inurl:] in your query, Google will restrict the results to documents containing that word in the url. For instance, [inurl:google search] will return documents that mention the word "google" in their url, and mention the word "search" anywhere in the document (url or no).

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Really, when I type allinurl:www.webmasterworld.com got 2 results (really 2,570,000, but 99.9 or 100% from webmasterworld.com ) or when i type allinurl:www.google.com i got all G's sites on with different tlds (allinurl:google.com all google domains and subdomains .. .etc)

i'm sure that there are more than 1000 or may be 10 000 pages, with google.com in title (a lot of CMS and forum scripts put the title in "meta titles"). so if u open any topic here and use google.com there, that page will have the same meta title (and often meta description) so this page must be in inurl:google.com results too (but this pages are included in "repeat the search with the omitted results included." only)


and sometimes, google include in allinurl:www.domain.com results from other sites and display results from www.another.domain.com higher than results from www.domain.com

why




what reasons can cause this: Real domain with "domain.com" in his title is displayey at the bottom?
imho
1. hijacking (using ur cash)
2. any kind of penalty
3.
4.