Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon moi con snippets" » "chuong moi con snippets", "luong moi con snippets", "cuoc doi con snippets", "cuon moi cong snippets", "cuon moi co snippets", "cuon mot con 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: (((("cuon moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon moi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon moi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.