Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang cuu voi snippets" » "lang cua voi snippets", "lang chu voi snippets", "lang cung voi snippets", "lang cuu hoi snippets", "lang cuu noi snippets", "lang cuu vai 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: (((("lang cuu 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: (((("lang cuu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang cuu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang cuu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.