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