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"

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: (((("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"))*.