Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran benh ve snippets" » "tran binh ve snippets", "tren benh ve snippets", "trong benh ve snippets", "tran benh va snippets", "tran benh vien 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 benh ve 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 benh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran benh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran benh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.