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