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