Perhaps you should try some spelling variations:
"hoang van code snippets" » "hang va code snippets", "hoang van de snippets", "hoang van hoe snippets", "hoang van cong snippets"
"dung vbugs code slippers" » "dung vbungs code slippers", "dung vbugss code slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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

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