Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi do canh snippets" » "khoi de canh snippets", "khoi dong canh snippets", "khoa doi canh snippets", "khoi doi canh snippets", "khoi do sanh snippets", "khoi do danh 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 do 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 do canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi do canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.