Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhau can toi snippets" » "hau can toi snippets", "nha cao toi snippets", "nhap ca toi snippets", "nhau can thi snippets", "nhau van toi snippets", "nhau cac toi 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: (((("nhau can toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhau can toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhau can toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhau can toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.