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