Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi anh con snippets" » "doi hanh con snippets", "doi canh con snippets", "doi sanh con snippets", "doi anh cong snippets", "doi anh son snippets", "doi anh co 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 anh con 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 anh con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi anh con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi anh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.