Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh tu du snippets" » "danh tu code snippets", "anh tu du snippets", "hanh tu du snippets", "doanh thu du snippets", "danh tu duy snippets", "danh tu dau snippets", "danh tru du 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 tu du 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 tu du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh tu du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh tu du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.