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