Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua tuc kiem snippets" » "lua tac kiem snippets", "lua thuoc kiem snippets", "lua phuc kiem snippets", "luat tuc kiem snippets", "cua tuc kiem snippets", "qua tuc kiem 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 tuc kiem 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 tuc kiem snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lua tuc kiem snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua tuc kiem snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.