Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tinh can snippets" » "tan thinh can snippets", "ban tinh can snippets", "man tinh can snippets", "tan tinh cao snippets", "tan tinh ca snippets", "tan minh can 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 tinh 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: (((("tan tinh can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tinh can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tinh can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.