Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua lieu den snippets" » "cua dieu den snippets", "cu lieu den snippets", "cua hieu den snippets", "cua lieu dien snippets", "cua lieu de snippets", "cua bieu dien 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: (((("cua lieu 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: (((("cua lieu den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua lieu den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua lieu den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.