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