Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ton kho cau snippets" » "toan khoa cau snippets", "von khoa cau snippets", "con khoa cau snippets", "ton kho cam snippets", "ton khoa chau snippets", "ton kho canh 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: (((("ton kho cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ton kho cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ton kho cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ton kho cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.