Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau thi nhap slippers" » "cau thu nhap slippers", "cau thi phap slippers", "cau thi chap slippers", "cau thi nhap slippery", "cau thi nhap grippers"
"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: (((("cau thi nhap slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau thi nhap slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau thi nhap slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau thi nhap slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.