Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao hoan cho snippets" » "dao doanh cho snippets", "vao hoang cho snippets", "do hoa cho snippets", "dao han cho snippets", "dao toan cho snippets", "dao hoa cho 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: (((("dao hoan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao hoan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao hoan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao hoan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.