Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan uon doi snippets" » "nhan con doi snippets", "nhan tuong doi snippets", "nhan cuoc doi snippets", "nhan huong doi snippets", "nhan duong 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: (((("nhan uon 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: (((("nhan uon doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan uon doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan uon doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.