Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sieu van soa snippets" » "hieu van soa snippets", "su van soa snippets", "lieu va soa snippets", "sieu van hoa snippets", "sieu van son snippets", "sieu van khoa 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 van soa 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 van soa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu van soa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu van soa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.