Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"nhung li chat snippets" » "nhung loi chat snippets", "nhung bi chat snippets", "nhung gi chat snippets", "nhung ly chat snippets", "nhung lai chau snippets", "nhung gia 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: (((("nhung li 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: (((("nhung li chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung li chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung li chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.