Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi de canh snippets" » "khi de canh snippets", "khoa de canh snippets", "khoi he canh snippets", "khoi ve canh snippets", "khoi de anh snippets", "khoi do 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: (((("khoi de canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi de canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi de canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi de canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.