Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tich va noi snippets" » "tich van noi snippets", "tich va ngoi snippets", "tich va nuoi snippets", "tinh va noi snippets", "dich va noi 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: (((("tich va noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tich va noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich va noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich va noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.