Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi trang do snippets" » "doi trong do snippets", "doi trung do snippets", "thoi trang do snippets", "doi trang o snippets", "doi tang do snippets", "doi trang de 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: (((("doi trang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi trang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi trang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi trang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.