Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat so cuu snippets" » "thuat so cuu snippets", "luat bao cuu snippets", "luat so huu snippets", "luat ho cuu snippets", "luat so cau 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 so cuu 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 so cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat so cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat so cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.