Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh ca tre snippets" » "dan ca tre snippets", "doanh cua tre snippets", "danh cho tre snippets", "danh ca tren snippets", "danh cua tre snippets", "danh ca tru 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 ca tre 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 ca tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh ca tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.