Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trang su ho snippets" » "trong su ho snippets", "tang su ho snippets", "trang du ho snippets", "trang su hoa snippets", "trang su hoc snippets", "trang su pho 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 ho 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 ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trang su ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trang su ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.