Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"menh tap cua snippets" » "menh lap cua snippets", "benh tai cua snippets", "benh tam cua snippets", "menh tap quan snippets", "menh tiep 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: (((("menh tap 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: (((("menh tap cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( menh tap cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("menh tap cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.