Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ro trong chu snippets" » "ro trong thu snippets", "ro trong cho snippets", "ro trong che snippets", "dot trong chu 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: (((("ro trong chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ro trong chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ro trong chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ro trong chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.