Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau dung cua snippets" » "dan dung cua snippets", "da dung cua snippets", "dat dung cua snippets", "dau dung luan snippets", "dau 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: (((("dau 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: (((("dau dung cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau dung cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau dung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.