Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc chua cau snippets" » "tom chua cau snippets", "tac chuan cau snippets", "truc chua cau snippets", "toc chua cu snippets", "toc chua dau snippets", "toc cua cau 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: (((("toc chua cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc chua cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc chua cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc chua cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.