Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tran toi snippets" » "tan tran troi snippets", "tan tran thi snippets", "tan tran tri snippets", "toan tran toi snippets", "than tran toi snippets", "tuan tran toi 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 tran toi 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 tran toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tran toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tran toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.