Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan chu chan snippets" » "dan chu han snippets", "dan chua chay snippets", "dan chu van snippets", "dan cu chan snippets", "can chu chan snippets", "dan cho chan 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 chu chan 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 chu chan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan chu chan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan chu chan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.