Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu cuu da snippets" » "hieu cua da snippets", "nhieu cau da snippets", "phieu luu da snippets", "hieu cuu dac snippets", "hieu cuu dao snippets", "hieu cuu va 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: (((("hieu cuu 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: (((("hieu cuu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu cuu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.