Perhaps you should try some spelling variations:
"pham nguoi code snippets" » "phau nguoi code snippets", "phai nguoi code snippets", "pham ngoc code snippets", "pham nguoi co snippets", "pham nguoi cong snippets", "pham nguoi cor snippets", "pham 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: (((("pham 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: (((("pham nguoi code snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham nguoi code snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham nguoi code snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.