Perhaps you should try some spelling variations:
"dang pham dat snippets" » "dang phat dat snippets", "hang pham dat snippets", "san pham dat snippets", "dang pham dac snippets", "dang pham dau snippets", "dang pham nhat snippets", "dang pham dat 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: (((("dang pham dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang pham dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang pham dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang pham dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.