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