Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan nuoi con snippets" » "ban nuoi con snippets", "chan nuoi con snippets", "ban nguoi con snippets", "dan nuoi lon snippets", "dan nguoi cong snippets", "dan nuoc cong 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: (((("dan nuoi con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan nuoi con snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan nuoi con snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan nuoi con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.