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