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