Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den lai cho snippets" » "dien lai cho snippets", "den lam cho snippets", "den lay cho snippets", "den lai chau snippets", "den bai choi snippets", "den lai cuoc 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: (((("den lai cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den lai cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den lai cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den lai cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.