Perhaps you should try some spelling variations:
"dung dat nghe snippets" » "dung dat code snippets", "dung va nghe snippets", "dung tai nghe snippets", "dung day nghe snippets", "dung da nghe snippets", "dung dang nghe snippets"
"locating bug core snippets" » "locating bug code snippets"
"hanh java java snippets" » "hanh va java snippets"

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

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