Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai danh toc snippets" » "dai dang toc snippets", "dao danh toc snippets", "day danh toc snippets", "dai dan toc snippets", "dai danh hoc snippets", "dai danh thuc 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: (((("dai danh toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai danh toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai danh toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai danh toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.