Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con dao voi snippets" » "con day voi snippets", "cuong dao voi snippets", "cong dan voi snippets", "con da voi snippets", "con dao noi snippets", "con do 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: (((("con dao 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: (((("con dao voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con dao voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con dao voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.