Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang nang du snippets" » "dung nang du snippets", "dang bang du snippets", "dang dang du snippets", "dang nang tu snippets", "dang nang luc snippets", "dang nang doc 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 nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.