Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trang su cu snippets" » "trong su cu snippets", "tang su cu snippets", "trang du cu snippets", "trang su cua snippets", "trang su tu snippets", "trang su co 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: (((("trang su cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trang su cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trang su cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trang su cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.