Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong tinh hong snippets" » "dong kinh hong snippets", "dong tin hong snippets", "cong tinh hong snippets", "dong tinh huong snippets", "dong tinh khong snippets", "dong tinh phong 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 tinh hong 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 tinh hong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong tinh hong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong tinh hong snippets"))) or ("locating bug code snippets"))*.