Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc dat voi snippets" » "duoc bat voi snippets", "duoc dai voi snippets", "duoc dan voi snippets", "duoc dat boi snippets", "duoc da voi snippets", "duoc dao 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: (((("duoc dat 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: (((("duoc dat voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc dat voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc dat voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.