Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ninh duc doc snippets" » "minh duc doc snippets", "dinh duc doc snippets", "tinh duc doc snippets", "ninh duc hoc snippets", "ninh duy doc snippets", "ninh duc ngoc 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: (((("ninh duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ninh duc doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ninh duc doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ninh duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.