Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong ly do snippets" » "huong ly do snippets", "cuong ky do snippets", "cuong le do snippets", "cuong ly dao snippets", "cuong ly doi snippets", "cuong ly du 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 ly do 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 ly do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong ly do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong ly do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.