Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong hai le snippets" » "cong hai le snippets", "cuong bai le snippets", "duong hai le snippets", "cuong hai ly snippets", "cuong tai le snippets", "cuong hoi le 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 hai le 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 hai le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong hai le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong hai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.