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