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