Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngay bay cnc snippets" » "ngay nay cnc snippets", "ngay thay cnc snippets", "ngay sau cnc snippets", "ngay may cnc snippets", "ngay phay cnc 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: (((("ngay bay cnc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngay bay cnc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngay bay cnc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngay bay cnc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.