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