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