Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong von can snippets" » "dung von can snippets", "dong co can snippets", "dong hoc can snippets", "dong voi can snippets", "dong von luan snippets", "dong van canh 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: (((("dong von can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong von can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong von can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong von can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.