Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu tot den snippets" » "lieu mot den snippets", "lieu hoc den snippets", "lieu tai den snippets", "lieu tat den snippets", "lieu hoat den snippets", "lieu tot lien 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 tot den 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 tot den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu tot den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tot den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.