Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi quan can snippets" » "mai quan can snippets", "hai quan can snippets", "co quan can snippets", "moi quan cau snippets", "moi quan van snippets", "moi xuan can 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 can 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 can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi quan can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi quan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.