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