Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luat cac cua snippets" » "luat cac code snippets", "luat can cua snippets", "luat cau cua snippets", "xuat cac cua snippets", "luat cach cua snippets", "luat cac qua snippets", "luat ca 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 cac 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 cac cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luat cac cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cac cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.