Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan hang ca snippets" » "tan khang ca snippets", "ban hang ca snippets", "van hang ca snippets", "tan hang va snippets", "tan nang cao snippets", "tan hang tai 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 hang ca 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 hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.