Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac luat can snippets" » "cap luat can snippets", "cac xuat can snippets", "cac thuat can snippets", "cac luat canh snippets", "cac luat dan snippets", "cac luat ban 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: (((("cac luat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac luat can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac luat can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac luat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.