Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho minh da snippets" » "chi minh da snippets", "cho sinh da snippets", "cao minh da snippets", "cho minh dao snippets", "cho tinh da snippets", "cho minh 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: (((("cho minh 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: (((("cho minh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho minh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho minh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.