Perhaps you should try some spelling variations:
"dang chat doc snippets" » "dang nhat doc snippets", "dang phat doc snippets", "dung chat doc snippets", "dang chat hoc snippets", "dang chau doc snippets", "dang thuat doc snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "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 chat doc 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 chat doc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang chat doc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang chat doc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.