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