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