Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang co chi snippets" » "dong co chi snippets", "dung co chi snippets", "dang do chi snippets", "dang con chi snippets", "dang ho chi snippets", "dang co khi 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 co chi 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 co chi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang co chi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang co chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.