Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xon can chi snippets" » "xon con chi snippets", "xuan can chi snippets", "toan can chi snippets", "xon can thi snippets", "xon van chi snippets", "xon san chi 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: (((("xon can 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: (((("xon can chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xon can chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xon can chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.