Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tao dong snippets" » "dung tai dong snippets", "dung bao dong snippets", "dung tay dong snippets", "dung lao dong snippets", "dung dao dong snippets", "dung cao dong 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 tao dong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tao dong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tao dong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tao dong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.