Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tao son snippets" » "tan trao son snippets", "tai tao son snippets", "tan tat son snippets", "tan tao song snippets", "tan cao son snippets", "tan tay son 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: (((("tan tao son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan tao son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tao son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tao son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.