Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao anh dot snippets" » "cao dang dot snippets", "cao tang dot snippets", "cao bang dot snippets", "cao anh dat snippets", "cao anh doc snippets", "cao anh dong 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: (((("cao anh dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao anh dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao anh dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao anh dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.