Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"le tuan hung snippets" » "le tran hung snippets", "le luan hung snippets", "le tuan dung snippets", "le xuan hung snippets", "le quang hung snippets", "le thanh hung snippets", "le tuan hung 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: (((("le tuan hung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le tuan hung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le tuan hung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le tuan hung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.