Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi cau chu snippets" » "voi cac chu snippets", "voi can chu snippets", "hoi cau chu snippets", "voi cau chiu snippets", "voi ca chu 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: (((("voi cau chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi cau chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi cau chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi cau chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.