Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau van doan snippets" » "cau van doanh snippets", "cau van toan snippets", "cau van hoan snippets", "chau van doan snippets", "cuu van doan snippets", "cac 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: (((("cau 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: (((("cau van doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau van doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau van doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.