Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran thuy da snippets" » "thanh thuy da snippets", "tran thi da snippets", "tran huu da snippets", "tran thuy dao snippets", "tran thuy do snippets", "tran thu da 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: (((("tran thuy da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran thuy da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran thuy da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran thuy da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.