Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den qua voi snippets" » "den xua voi snippets", "dien quan voi snippets", "dan quan voi snippets", "den qua loi snippets", "den dua voi snippets", "den qua noi 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: (((("den qua 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: (((("den qua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den qua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den qua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.