Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"peng su cao snippets" » "leng su cao snippets", "peng shi cao snippets", "phong su cao snippets", "peng cu cao snippets", "peng vu cao snippets", "peng su co 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: (((("peng su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("peng su cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( peng su cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("peng su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.