Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ro trong hop snippets" » "ro trong chop snippets", "ro truong hop snippets", "ro tong hop snippets", "dot trong hop 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 hop 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 hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ro trong hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ro trong hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.