Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach vi cho snippets" » "cac vi cho snippets", "mach vi cho snippets", "cach viet cho snippets", "cach va cho snippets", "cach ve cho snippets", "cach vu cho 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: (((("cach vi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach vi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach vi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach vi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.