Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao nam nghe snippets" » "tao nang nghe snippets", "tao van nghe snippets", "dao nam nghe snippets", "tao lam nghe snippets", "tao mam nghe 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 nam nghe 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 nam nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao nam nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao nam nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.