Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban noi cac snippets" » "ban nuoi cac snippets", "ban moi cac snippets", "van noi cac snippets", "ban voi cac snippets", "ban hoi cac snippets", "ban nom cac 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 noi cac 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 noi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban noi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban noi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.