Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu ke de snippets" » "hieu ky de snippets", "hieu ve de snippets", "hieu kem de snippets", "chieu e de snippets", "chieu ke he snippets", "chieu ke do 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: (((("chieu ke de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chieu ke de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu ke de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu ke de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.