Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho cong di snippets" » "cao cong di snippets", "cua cong di snippets", "cac cong di snippets", "cho cong li snippets", "cho cong ti snippets", "cho cong bi 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: (((("cho cong di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho cong di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho cong di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho cong di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.