Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong cuu ve snippets" » "luong cua ve snippets", "luong chu ve snippets", "luong huu ve snippets", "luong cuu va 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: (((("luong cuu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong cuu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong cuu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong cuu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.