Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang cao chi snippets" » "nang cao chi snippets", "lang co chi snippets", "quang cao chi snippets", "lang cao cho snippets", "lang bao chi snippets", "lang cao thi 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: (((("lang cao chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang cao chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang cao chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang cao chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.