Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va luat cong snippets" » "va thuat cong snippets", "va luat chung snippets", "va cua cong snippets", "vay luan cong snippets", "cua luat 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: (((("va luat 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: (((("va luat cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va luat cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va luat cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.