Perhaps you should try some spelling variations:
"dang phuc cac snippets" » "dang phuoc cac snippets", "nang phuc cac snippets", "dang thuc cac snippets", "dang phuc cam snippets", "dang phuc ca snippets", "dang phuc cham snippets"
"dung java java snippets" » "dung va java 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: (((("dang phuc 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: (((("dang phuc cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang phuc cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang phuc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.