Perhaps you should try some spelling variations:
"tran hoang code snippets" » "quan hoang code snippets", "tran quang code snippets", "tranh hang code snippets", "tran hoang de snippets", "tran hoang cong snippets", "tran hoang cd snippets"
"dung java java snippets" » "dung va java 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: (((("tran hoang code snippets") or ("dung java java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hoang code snippets") OR ("dung java java snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( tran hoang code snippets ) or ( dung java java snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hoang code snippets") or ("dung java java snippets"))) or ("locating bug code slippers"))*.