Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran hai son snippets" » "tran bai son snippets", "tran chau son snippets", "tran nhat son snippets", "tran thai son snippets", "tran ha son snippets", "tran dai son 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: (((("tran hai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hai son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hai son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hai son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.