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