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