Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sieu cho con snippets" » "sieu nho con snippets", "sieu cao con snippets", "sieu thi con snippets", "sieu cho cong snippets", "sieu cho lon snippets", "sieu cho can 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: (((("sieu cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sieu cho con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu cho con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu cho con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.