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