Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"con cac danh snippets" » "con cac doanh snippets", "con cac dan snippets", "con cac dang snippets", "chon cac danh snippets", "cong cac danh snippets", "co cac danh snippets", "con cac danh slippers"
"locating bug code snippets" » "locating bug code slippers", "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 ("con cac danh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("con cac danh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( con cac danh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("con cac danh snippets"))) or ("locating bug code snippets"))*.