Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu cau den snippets" » "lieu cao den snippets", "lieu sau den snippets", "lieu chiu den snippets", "lieu cap den snippets", "lieu cau de snippets", "lieu hau den 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 cau 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 cau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu cau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.