Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cot loi cau snippets" » "co loi cau snippets", "cot soi cau snippets", "mot loai cau snippets", "cot loi ca snippets", "cot hoi cau snippets", "cot loi can 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: (((("python using java snippets") or ("cot loi cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cot loi cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cot loi cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cot loi cau snippets"))) or ("locating bug code snippets"))*.