Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao nghe cnc snippets" » "nao nghe cnc snippets", "tam nghe cnc snippets", "thai nghe cnc snippets", "tao nghe cong snippets", "tao nghe che snippets", "tao nghe co 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: (((("tao nghe 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: (((("tao nghe cnc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao nghe cnc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao nghe cnc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.