Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong nhoi do snippets" » "cong nho do snippets", "cong noi do snippets", "cong hoa do snippets", "cong nguoi do snippets", "cong nhoi cho snippets", "cong thoi dao 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: (((("cong nhoi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong nhoi do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nhoi do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nhoi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.