Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban cau den snippets" » "bang cau den snippets", "ban can den snippets", "van cau den snippets", "ban cap den snippets", "ban cau de snippets", "ban hau den 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 cau den 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 cau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban cau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.