Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi suc toan snippets" » "noi duc toan snippets", "noi quoc toan snippets", "noi duc tan snippets", "hoi suc toan snippets", "noi luc toan snippets", "voi suc toan 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: (((("noi suc toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi suc toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi suc toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi suc toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.