Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach so cho snippets" » "cach su cho snippets", "mach so cho snippets", "cach noi cho snippets", "cach mo cho snippets", "cach so 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: (((("cach so 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: (((("cach so cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach so cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach so cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.