Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat duoc coi snippets" » "dat duoc coi snippets", "luat duoc coi snippets", "xuat duoc coi snippets", "vat duoc hoi snippets", "vat duoc co snippets", "vat duoc moi 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 coi 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 coi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat duoc coi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat duoc coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.