Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huy trang du snippets" » "thuy trang du snippets", "huy tran du snippets", "huy thang du snippets", "huy tang du snippets", "huy trung du snippets", "huy trang de 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: (((("huy trang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huy trang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huy trang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huy trang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.