Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu van tre snippets" » "lieu va tre snippets", "hieu van tre snippets", "sieu van tre snippets", "lieu van tren snippets", "lieu van te snippets", "lieu ban tre 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: (((("lieu van tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu van tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu van tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu van tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.