Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua dao voi snippets" » "lua dao code snippets", "luat dat voi snippets", "luat dan voi snippets", "luat dau voi snippets", "lua da voi snippets", "lua dao noi snippets", "lua do voi snippets"
"python using java snippets" » "python using data 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: (((("lua dao voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua dao voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lua dao voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua dao voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.