Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh cho co snippets" » "danh cho code snippets", "danh cheo co snippets", "danh cho cao snippets", "danh cho con snippets", "doanh cho co snippets", "dan cho co snippets", "dinh cho co 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: (((("danh cho co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh cho co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh cho co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh cho co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.