Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc nang du snippets" » "dun nang du snippets", "cuc nang du snippets", "duc bang du snippets", "duc nang tu snippets", "duc nang luc snippets", "duc 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: (((("duc 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: (((("duc nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.