Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang viet ho snippets" » "nang viet ho snippets", "mang viet ho snippets", "anh viet ho snippets", "lang viet cho snippets", "lang viet ha snippets", "lang viet o 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: (((("lang viet ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang viet ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang viet ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang viet ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.