Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho chu doan snippets" » "cho khu doan snippets", "cho chuan doan snippets", "cho chan doan snippets", "cho thue doan 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: (((("cho chu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho chu doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho chu doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho chu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.