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