Perhaps you should try some spelling variations:
"duong java java snippets" » "duong va java snippets"
"quan cau code snippets" » "quang cao code snippets", "toan cau code snippets", "quan ha code snippets", "quan cau cong snippets", "quan cau de snippets", "quan cfd code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duong java java snippets") or ("quan cau code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong java java snippets") OR ("quan cau code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( duong java java snippets ) or ( quan cau code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("duong java java snippets") or ("quan cau code snippets"))) or ("locating bug code slippers"))*.