Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao nhan co snippets" » "tao nhan co snippets", "dac nhan co snippets", "do nhan co snippets", "dao nhan con snippets", "dao phan co snippets", "dao nhan mo 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: (((("dao nhan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao nhan co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao nhan co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao nhan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.