Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc du cuong snippets" » "cuc duc cuong snippets", "cuc duy cuong snippets", "cuc du luong snippets", "cac du cuong 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: (((("cuc du cuong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuc du cuong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc du cuong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc du cuong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.