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