Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran nam doi snippets" » "tra nam doi snippets", "tan nam doi snippets", "tram nam doi snippets", "tran nam hoi snippets", "tran nam do snippets", "tran nam noi 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 nam doi 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 nam doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran nam doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.