Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi khoi can snippets" » "nhi khoa can snippets", "khi thai can snippets", "chi khoa can snippets", "khi khoa can snippets", "khi khoi nang snippets", "khi 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: (((("khi 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: (((("khi khoi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi khoi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi khoi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.