Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi van canh snippets" » "noi van anh snippets", "noi van hanh snippets", "noi van manh snippets", "noi va canh snippets", "doi van canh snippets", "moi van canh 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: (((("noi van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi van canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi van canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.