Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua ngu con snippets" » "cuu ngu con snippets", "cua ndu con snippets", "cua nguoi con snippets", "cua ngu co snippets", "cua ngu can snippets", "cua ngu coc 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 ngu con 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 ngu con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua ngu con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua ngu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.