Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan cong chi snippets" » "tan cuong chi snippets", "tran cong chi snippets", "toan cong chi snippets", "tan cong khi snippets", "tan cong cho snippets", "tan con chi 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: (((("tan cong chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan cong chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan cong chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan cong chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.