Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho canh cau snippets" » "kho tang cau snippets", "thu canh cau snippets", "cho can cau snippets", "kho canh chau snippets", "kho can cau snippets", "kho danh cau 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: (((("kho canh 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: (((("kho canh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho canh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho canh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.