Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh che voi snippets" » "han che voi snippets", "hanh he voi snippets", "hanh nghe voi snippets", "hanh che noi snippets", "hanh che vi snippets", "hanh chi voi 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: (((("hanh che voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh che voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh che voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh che voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.