Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi tieu du snippets" » "chi tiet du snippets", "chi hieu du snippets", "cai tien du snippets", "chi tieu su snippets", "chi tiep du snippets", "chi tieu dung 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: (((("chi tieu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi tieu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi tieu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi tieu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.