Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sau lan cach snippets" » "sau dan cach snippets", "sau nhan cach snippets", "sau bang cach snippets", "dau luan cach 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: (((("sau lan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sau lan cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sau lan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sau lan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.