Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ben toan cho snippets" » "dien toan cho snippets", "bieu toan cho snippets", "bong toan cho snippets", "ben toan cao snippets", "ben toan chi snippets", "ben toan ho 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: (((("ben toan 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: (((("ben toan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ben toan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ben toan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.