Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"danh can hai snippets" » "danh ca hai snippets", "danh cau hai snippets", "danh nhan hai snippets", "danh chan hai snippets", "danh van hai snippets", "danh can dai snippets", "danh can hai slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("danh can hai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh can hai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh can hai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh can hai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.