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