Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi tu chu snippets" » "khi cu chu snippets", "thi tu chu snippets", "chi tu chu snippets", "khi tu chiu snippets", "khi tu chung 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 tu chu 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 tu chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi tu chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi tu chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.