Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat lieu da snippets" » "nhat bieu da snippets", "nhat hieu da snippets", "nhat chieu da snippets", "nhat lieu dao snippets", "nhat lieu dai snippets", "nhat lieu dia 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: (((("nhat lieu 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: (((("nhat lieu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat lieu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat lieu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.