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