Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong linh chi snippets" » "duong linh chi snippets", "dong kinh chi snippets", "dong ninh chi snippets", "dong dinh chi snippets", "dong minh chi snippets", "dong linh chinh 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 ("dong linh 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 ("dong linh chi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong linh chi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong linh chi snippets"))) or ("locating bug code snippets"))*.