Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc duy khoe snippets" » "cuc suc khoe snippets", "cuc huy khoa snippets", "cuc duy hue snippets", "cuc du khoe snippets", "duc duy khoe 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 duy khoe 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 duy khoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc duy khoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc duy khoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.