Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc doi canh snippets" » "luc doi hanh snippets", "luc boi canh snippets", "luc do canh snippets", "luoc doi canh snippets", "lua doi canh snippets", "luc moi canh 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: (((("luc doi canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc doi canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc doi canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc doi canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.