Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua vang cua snippets" » "cua dang cua snippets", "cua hang cua snippets", "cua lang cua snippets", "cua mang cua snippets", "cua tang cua 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 vang cua 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 vang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua vang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua vang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.