The possible reasons include the following:

1. Typographical errors in the address, for example:

• Most addresses DO NOT contain any capital letters;
• If you typed in a file with an html extension (for example bangkok.com/info/index.html), try the same file with an htm extension instead, or try it with no extension at all, for example try Bangkok.com/banyantree instead of bangkok.com/banyantree.htm;
• If you tried to find a file without an htm or html extension, try it with the extension, for example instead of Bangkok.com/privacy try bangkok.com/privacy.htm
• Web addresses almost never contain blank spaces.
• Many web addresses do contain dashes, so instead of bangkok.com/crownnaiyang for example, try bangkok.com/crown-naiyang

2. The page was once hosted on bangkok.com but service has been discontinued.

3. The link refers to a page that does not exist on bangkok.com