Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than va tong snippets" » "thanh va tong snippets", "nhan va tong snippets", "toan va tong snippets", "than va thong snippets", "than va tuong snippets", "than va trong 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: (((("than va tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than va tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than va tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than va tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.