Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat duoc co snippets" » "dat duoc co snippets", "luat duoc co snippets", "xuat duoc co snippets", "vat duoc hoc snippets", "vat duong co snippets", "vat duoc hoi 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: (((("vat duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat duoc co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat duoc co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.