Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can khoi can snippets" » "cac khoi can snippets", "van khoi can snippets", "dang khoi can snippets", "can khoa can snippets", "can khoi nang snippets", "can hoc can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("can khoi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can khoi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can khoi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can khoi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.