Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang di chi snippets" » "dang do chi snippets", "hang di chi snippets", "dang de chi snippets", "dang dia chi snippets", "dang doi chi snippets", "dang du chi 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: (((("dung java java snippets") or ("dang di chi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dang di chi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dang di chi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dang di chi snippets"))) or ("locating bug code snippets"))*.