Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran duy hoi snippets" » "tran duc hoi snippets", "tran quy hoi snippets", "tran thuy hoi snippets", "tran duoc hoi snippets", "tran duy khoe snippets", "tran duy thai 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 duy 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: (((("tran duy hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran duy hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran duy hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.