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