Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu vu can snippets" » "khu vuc can snippets", "khu du can snippets", "khu va can snippets", "khu vu van snippets", "khu vu cao snippets", "khu vu ban 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: (((("khu vu 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: (((("khu vu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu vu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu vu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.