Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan hat de snippets" » "toan hoat de snippets", "toan ham de snippets", "toan phan de snippets", "toan nhat de snippets", "toan vat de snippets", "toan dat de 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: (((("toan hat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan hat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan hat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan hat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.