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