Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngan xua cac snippets" » "ngan ngua cac snippets", "nhan xu cac snippets", "ngan xuat cac snippets", "ngan cua cac snippets", "ngan qua cac 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: (((("ngan xua 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: (((("ngan xua cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan xua cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan xua cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.