Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"jan tan duoc snippets" » "jan tao duoc snippets", "jan tran duc snippets", "jan da duoc snippets", "van tan duoc snippets", "tan tran duoc snippets", "phan tan duoc snippets", "jan tan duoc 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: (((("jan tan duoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("jan tan duoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( jan tan duoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("jan tan duoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.