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