Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong di hoi snippets" » "duong di hoi snippets", "cuong do hoi snippets", "huong di hoi snippets", "cuong dai hoi snippets", "cuong doi hoi snippets", "cuong bi hoi 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: (((("cuong di hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong di hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong di hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong di hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.