Perhaps you should try some spelling variations:
"phau nguoi code snippets" » "phau nguoi co snippets", "phau nguoi cong snippets", "phau nguoi cor snippets", "phan nguoi code snippets", "pham nguoi code snippets", "phap nguoi code snippets", "phau nguoi code slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"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: (((("phau nguoi code snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phau nguoi code snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phau nguoi code snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phau nguoi code snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.