Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong ca chi snippets" » "cong cua chi snippets", "cong cau chi snippets", "cong cac chi snippets", "cong a chi snippets", "cong cu chi snippets", "cong la 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: (((("cong ca chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong ca chi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong ca chi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ca chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.