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