Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh hat cua snippets" » "danh bat cua snippets", "dang hat cua snippets", "danh hau cua snippets", "danh nhat cua snippets", "danh chat cua snippets", "danh phat cua 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: (((("danh hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh hat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh hat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.