Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kai van doan snippets" » "kai van doanh snippets", "kai van toan snippets", "kai van hoan snippets", "hai van doan snippets", "mai van doan snippets", "lai van doan 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: (((("kai van doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kai van doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kai van doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kai van doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.