Perhaps you should try some spelling variations:
"phan van code snippets" » "phan van de snippets", "phan van hoe snippets", "phan van cong snippets", "pham van code snippets", "thanh van code snippets", "luan van code snippets", "phan van code slippers"
"dung vbugss code snippets" » "dung vbugss code slippers", "dung vbungss code snippets", "dung vbugsss code snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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

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