Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi quoc ao snippets" » "thu quoc ao snippets", "tai quoc ao snippets", "thi nuoc ao snippets", "thi quoc bao snippets", "thi quoc cao snippets", "thi quoc tao 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: (((("thi quoc ao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi quoc ao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi quoc ao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi quoc ao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.