Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho cau cong snippets" » "kho cac cong snippets", "kho cuu cong snippets", "kho cao cong snippets", "kho cam cong snippets", "khoa chau cong snippets", "kho canh cong 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 cau cong 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 cau cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho cau cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho cau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.