Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban dau doc snippets" » "bat dau doc snippets", "ban dan doc snippets", "van dau doc snippets", "ban dat doc snippets", "ban dau do snippets", "ban day 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: (((("ban dau doc 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 doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban dau doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.