Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc viet da snippets" » "nuoc viet da snippets", "duc viet da snippets", "quoc viet da snippets", "duoc viet dao snippets", "duoc viet dat snippets", "duoc viet ha 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: (((("duoc viet da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc viet da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc viet da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc viet da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.