Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ca trong coc snippets" » "ca trong cuoc snippets", "ca trong cac snippets", "ca trong co snippets", "cay trong coc snippets", "cad trong coc snippets", "co trong coc 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: (((("ca trong coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca trong coc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ca trong coc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ca trong coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.