Perhaps you should try some spelling variations:
"hanh trinh code snippets" » "canh tranh code snippets", "hanh chinh code snippets", "hanh trinh cong snippets", "hanh trinh co snippets", "hanh trinh cad snippets"
"dung dat de snippets" » "dung va de snippets", "dung tai de snippets", "dung vat de snippets", "dung hat de snippets", "dung dat dien snippets"
"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: (((("hanh trinh code snippets") or ("dung dat de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh trinh code snippets") OR ("dung dat de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh trinh code snippets ) or ( dung dat de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh trinh code snippets") or ("dung dat de snippets"))) or ("locating bug code snippets"))*.