Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua bi tong snippets" » "cua bi trong snippets", "cua bi cong snippets", "cua bi dong snippets", "cua bo tong snippets", "cua vi tong snippets", "cua ba tong 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 bi tong 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 bi tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua bi tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua bi tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.