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