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