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