Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dao cac noi snippets" » "dao cac code snippets", "do cac noi snippets", "sao cac noi snippets", "tao cac noi snippets", "dao cach noi snippets", "dao cac toi snippets", "dao cau noi 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: (((("dao cac noi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao cac noi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dao cac noi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao cac noi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.