Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"anh ta case snippets" » "anh a case snippets", "anh sea case snippets", "anh two case snippets", "anh tu case snippets", "anh va case snippets", "anh tuan case 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: (((("anh ta case snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh ta case snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh ta case snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh ta case snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.