Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc bai cung snippets" » "doc ai cung snippets", "doc ban cung snippets", "doc dai cuong snippets", "hoc bai cung snippets", "doc hai cung snippets", "doi bai cung 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 bai cung 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 bai cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc bai cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc bai cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.