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