Perhaps you should try some spelling variations:
"duong sinh dat snippets" » "duong minh dat snippets", "duong manh dat snippets", "trong sinh dat snippets", "duong sinh vat snippets", "duong dinh dat snippets", "duong sinh dai snippets", "duong sinh 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: (((("duong sinh 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: (((("duong sinh dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong sinh dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong sinh dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.