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