Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cho voi snippets" » "sang cho voi snippets", "han cho voi snippets", "tang cho voi snippets", "hang choi voi snippets", "hang cho moi snippets", "hang pho voi 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 voi 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 voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cho voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cho voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.