Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh den se snippets" » "trinh dien se snippets", "trinh dan se snippets", "trinh dung se snippets", "trinh den su snippets", "trinh len se 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: (((("trinh den se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh den se snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh den se snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh den se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.