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