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