Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac minh voi snippets" » "cao minh voi snippets", "cac tinh voi snippets", "cac dinh voi snippets", "cac binh voi snippets", "cac minh hoi snippets", "cac minh loi 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: (((("cac minh 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: (((("cac minh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac minh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac minh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.