Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"men minh can snippets" » "men sinh can snippets", "lien minh can snippets", "tien minh can snippets", "men minh chanh snippets", "men minh danh snippets", "men minh tuan 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: (((("men minh can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("men minh can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men minh can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men minh can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.