Perhaps you should try some spelling variations:
"van dung java snippets" » "van dung va snippets", "van dong java snippets", "xay dung java snippets", "tin dung java snippets"
"dung cua co snippets" » "dung luan co snippets", "dung cho co snippets", "dung cua bo snippets", "dung cua 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: (((("dung cua co snippets") or ("van dung java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cua co snippets") OR ("van dung java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cua co snippets ) or ( van dung java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cua co snippets") or ("van dung java snippets"))) or ("locating bug code snippets"))*.