Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi trac doi snippets" » "thi tran doi snippets", "thi tac doi snippets", "thi trang doi snippets", "thi trao doi snippets", "thi truan doi snippets", "thi thay doi 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: (((("thi trac 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: (((("thi trac doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi trac doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi trac doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.