Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data dua voi snippets" » "dai dua voi snippets", "dat cua voi snippets", "dat hua voi snippets", "data da voi snippets", "data dua moi snippets", "data sua voi 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: (((("data dua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data dua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data dua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data dua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.