Perhaps you should try some spelling variations:
"lang trong tot snippets" » "dung trong tot snippets", "cong trong tot snippets", "dong trong tot snippets", "lang trong trot snippets", "lang trong mot snippets", "lang trong hoat snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("lang trong tot snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( lang trong tot snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("lang trong tot snippets"))) or ("locating bug code snippets"))*.