Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban dau do snippets" » "bat dau do snippets", "ban dan do snippets", "van dau do snippets", "ban cau do snippets", "ban dau co snippets", "ban dao do 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: (((("ban dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban dau do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban dau do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.