Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu dieu co snippets" » "thu dieu co snippets", "nhu dieu co snippets", "khoa dieu co snippets", "khu dieu con snippets", "khu lieu co snippets", "khu deu co 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 dieu co 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 dieu co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu dieu co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu dieu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.