Perhaps you should try some spelling variations:
"phan thanh data snippets" » "pham thanh data snippets", "ban thanh data snippets", "van thanh data snippets", "phan thanh dat snippets", "phan thanh dam snippets", "phan thanh dan snippets", "phan thanh data 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", "locating bug core 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: (((("phan thanh data snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan thanh data snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan thanh data snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan thanh data snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.