Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao xuan chi snippets" » "do xuan chi snippets", "ngo xuan chi snippets", "dao van chi snippets", "dao xuan chin snippets", "dao luan chi snippets", "dao quan chi 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 xuan chi 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 xuan chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao xuan chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao xuan chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.