Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai dua doan snippets" » "dai du doan snippets", "dai quan doan snippets", "dai cua doanh snippets", "dai cua doan snippets", "dai sua doan snippets", "dai luan doan 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: (((("dai dua doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai dua doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai dua doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai dua doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.