Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu tu doan snippets" » "chu du doan snippets", "chu tu dan snippets", "chu tap doan snippets", "cau tu doan snippets", "thu tu doan snippets", "chung tu doan 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: (((("chu tu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu tu doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu tu doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu tu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.