Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat dan moi snippets" » "luat dat moi snippets", "luat doanh moi snippets", "cua dan moi snippets", "luat ban moi snippets", "luat dai moi snippets", "luat dan hoi 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: (((("luat dan moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat dan moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat dan moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat dan moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.