Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xoa moi de snippets" » "xoa doi de snippets", "hoa moi de snippets", "xoa moi den snippets", "xoa moi ve snippets", "xoa moi ke 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: (((("xoa moi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xoa moi de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xoa moi de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xoa moi de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.