Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc luat moi snippets" » "hoc luat moi snippets", "duoc luat moi snippets", "nuoc luat moi snippets", "toc luat hoi snippets", "toc luat so snippets", "toc luat dai 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: (((("toc luat 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: (((("toc luat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc luat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc luat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.