Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi cai cach snippets" » "khi loi cach snippets", "khi tai cac snippets", "khi va cach snippets", "khi bai cach snippets", "khi dai cach snippets", "khi lai cach 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 cai cach 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 cai cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi cai cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi cai cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.