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