Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong thai da snippets" » "cong hai da snippets", "hong thai da snippets", "cong thanh da snippets", "cong thai dac snippets", "cong thai do snippets", "cong thai va 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: (((("cong thai da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong thai da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong thai da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong thai da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.