Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luat cau cua snippets" » "luat cau code snippets", "luat dau cua snippets", "lua cau cua snippets", "luat cac cua snippets", "luat cau qua snippets", "luat ca cua snippets", "luat cu cua snippets"
"python using java snippets" » "python using data 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 cau cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat cau cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luat cau cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cau cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.