Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoan va chu snippets" » "doan va chu snippets", "khoa ma chu snippets", "nhan va chu snippets", "khoan va che snippets", "khoan va cau snippets", "khoan va chi 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: (((("khoan va chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoan va chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoan va chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan va chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.