Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ca cua thuoc slippers" » "ca nha thuoc slippers", "ca cay thuoc slippers", "ca cua nuoc slippers", "co cua thuoc slippers", "ca cua thuoc slippery", "ca cua thuoc 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: (((("ca cua thuoc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca cua thuoc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ca cua thuoc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ca cua thuoc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.