Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi cham do snippets" » "hoi chuc do snippets", "hoi chu do snippets", "toc cham do snippets", "hoi cham o snippets", "hoi pham do snippets", "hoi tham 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: (((("hoi cham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi cham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi cham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi cham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.