Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan dan cac snippets" » "tang dan cac snippets", "tan doan cac snippets", "ban dan cac snippets", "tan dan cach snippets", "tan dang cac snippets", "tan dan ca 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 dan cac 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 dan cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan dan cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan dan cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.