Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"long bien code snippets" » "lang bien code snippets", "rong bien code snippets", "trong bien code snippets", "long bien che snippets", "long bien cong snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("long bien code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("long bien code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( long bien code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("long bien code snippets"))) or ("locating bug core snippets"))*.